diff --git a/helpdesk/forms.py b/helpdesk/forms.py
index 076df45b..502a90bb 100644
--- a/helpdesk/forms.py
+++ b/helpdesk/forms.py
@@ -16,7 +16,7 @@ from django.contrib.auth.models import User
 from django.utils.translation import ugettext as _
 
 from helpdesk.lib import send_templated_mail
-from helpdesk.models import Ticket, Queue, FollowUp, Attachment, IgnoreEmail, TicketCC, CustomField, TicketCustomFieldValue
+from helpdesk.models import Ticket, Queue, FollowUp, Attachment, IgnoreEmail, TicketCC, CustomField, TicketCustomFieldValue, TicketDependency
 from helpdesk.settings import HAS_TAG_SUPPORT
 
 class EditTicketForm(forms.ModelForm):
@@ -574,3 +574,7 @@ class TicketCCForm(forms.ModelForm):
         model = TicketCC
         exclude = ('ticket',)
 
+class TicketDependencyForm(forms.ModelForm):
+    class Meta:
+        model = TicketDependency
+        exclude = ('ticket',)
diff --git a/helpdesk/migrations/0002_auto__add_ticketdependency__add_unique_ticketdependency_ticket_depends.py b/helpdesk/migrations/0002_auto__add_ticketdependency__add_unique_ticketdependency_ticket_depends.py
new file mode 100644
index 00000000..47a1f321
--- /dev/null
+++ b/helpdesk/migrations/0002_auto__add_ticketdependency__add_unique_ticketdependency_ticket_depends.py
@@ -0,0 +1,237 @@
+# encoding: utf-8
+import datetime
+from south.db import db
+from south.v2 import SchemaMigration
+from django.db import models
+
+class Migration(SchemaMigration):
+
+    def forwards(self, orm):
+        
+        # Adding model 'TicketDependency'
+        db.create_table('helpdesk_ticketdependency', (
+            ('id', self.gf('django.db.models.fields.AutoField')(primary_key=True)),
+            ('ticket', self.gf('django.db.models.fields.related.ForeignKey')(related_name='ticket', to=orm['helpdesk.Ticket'])),
+            ('depends_on', self.gf('django.db.models.fields.related.ForeignKey')(related_name='depends_on', to=orm['helpdesk.Ticket'])),
+        ))
+        db.send_create_signal('helpdesk', ['TicketDependency'])
+
+        # Adding unique constraint on 'TicketDependency', fields ['ticket', 'depends_on']
+        db.create_unique('helpdesk_ticketdependency', ['ticket_id', 'depends_on_id'])
+
+
+    def backwards(self, orm):
+        
+        # Removing unique constraint on 'TicketDependency', fields ['ticket', 'depends_on']
+        db.delete_unique('helpdesk_ticketdependency', ['ticket_id', 'depends_on_id'])
+
+        # Deleting model 'TicketDependency'
+        db.delete_table('helpdesk_ticketdependency')
+
+
+    models = {
+        'auth.group': {
+            'Meta': {'object_name': 'Group'},
+            'id': ('django.db.models.fields.AutoField', [], {'primary_key': 'True'}),
+            'name': ('django.db.models.fields.CharField', [], {'max_length': '80', 'unique': 'True'}),
+            'permissions': ('django.db.models.fields.related.ManyToManyField', [], {'to': "orm['auth.Permission']", 'symmetrical': 'False', 'blank': 'True'})
+        },
+        'auth.permission': {
+            'Meta': {'ordering': "('content_type__app_label', 'content_type__model', 'codename')", 'unique_together': "(('content_type', 'codename'),)", 'object_name': 'Permission'},
+            'codename': ('django.db.models.fields.CharField', [], {'max_length': '100'}),
+            'content_type': ('django.db.models.fields.related.ForeignKey', [], {'to': "orm['contenttypes.ContentType']"}),
+            'id': ('django.db.models.fields.AutoField', [], {'primary_key': 'True'}),
+            'name': ('django.db.models.fields.CharField', [], {'max_length': '50'})
+        },
+        'auth.user': {
+            'Meta': {'object_name': 'User'},
+            'date_joined': ('django.db.models.fields.DateTimeField', [], {'default': 'datetime.datetime.now'}),
+            'email': ('django.db.models.fields.EmailField', [], {'max_length': '75', 'blank': 'True'}),
+            'first_name': ('django.db.models.fields.CharField', [], {'max_length': '30', 'blank': 'True'}),
+            'groups': ('django.db.models.fields.related.ManyToManyField', [], {'to': "orm['auth.Group']", 'symmetrical': 'False', 'blank': 'True'}),
+            'id': ('django.db.models.fields.AutoField', [], {'primary_key': 'True'}),
+            'is_active': ('django.db.models.fields.BooleanField', [], {'default': 'True'}),
+            'is_staff': ('django.db.models.fields.BooleanField', [], {'default': 'False'}),
+            'is_superuser': ('django.db.models.fields.BooleanField', [], {'default': 'False'}),
+            'last_login': ('django.db.models.fields.DateTimeField', [], {'default': 'datetime.datetime.now'}),
+            'last_name': ('django.db.models.fields.CharField', [], {'max_length': '30', 'blank': 'True'}),
+            'password': ('django.db.models.fields.CharField', [], {'max_length': '128'}),
+            'user_permissions': ('django.db.models.fields.related.ManyToManyField', [], {'to': "orm['auth.Permission']", 'symmetrical': 'False', 'blank': 'True'}),
+            'username': ('django.db.models.fields.CharField', [], {'max_length': '30', 'unique': 'True'})
+        },
+        'contenttypes.contenttype': {
+            'Meta': {'ordering': "('name',)", 'unique_together': "(('app_label', 'model'),)", 'object_name': 'ContentType', 'db_table': "'django_content_type'"},
+            'app_label': ('django.db.models.fields.CharField', [], {'max_length': '100'}),
+            'id': ('django.db.models.fields.AutoField', [], {'primary_key': 'True'}),
+            'model': ('django.db.models.fields.CharField', [], {'max_length': '100'}),
+            'name': ('django.db.models.fields.CharField', [], {'max_length': '100'})
+        },
+        'helpdesk.attachment': {
+            'Meta': {'ordering': "['filename']", 'object_name': 'Attachment'},
+            'file': ('django.db.models.fields.files.FileField', [], {'max_length': '100'}),
+            'filename': ('django.db.models.fields.CharField', [], {'max_length': '100'}),
+            'followup': ('django.db.models.fields.related.ForeignKey', [], {'to': "orm['helpdesk.FollowUp']"}),
+            'id': ('django.db.models.fields.AutoField', [], {'primary_key': 'True'}),
+            'mime_type': ('django.db.models.fields.CharField', [], {'max_length': '30'}),
+            'size': ('django.db.models.fields.IntegerField', [], {})
+        },
+        'helpdesk.customfield': {
+            'Meta': {'object_name': 'CustomField'},
+            'data_type': ('django.db.models.fields.CharField', [], {'max_length': '100'}),
+            'decimal_places': ('django.db.models.fields.IntegerField', [], {'null': 'True', 'blank': 'True'}),
+            'help_text': ('django.db.models.fields.TextField', [], {'null': 'True', 'blank': 'True'}),
+            'id': ('django.db.models.fields.AutoField', [], {'primary_key': 'True'}),
+            'label': ('django.db.models.fields.CharField', [], {'max_length': "'30'"}),
+            'list_values': ('django.db.models.fields.TextField', [], {'null': 'True', 'blank': 'True'}),
+            'max_length': ('django.db.models.fields.IntegerField', [], {'null': 'True', 'blank': 'True'}),
+            'name': ('django.db.models.fields.SlugField', [], {'max_length': '50', 'unique': 'True', 'db_index': 'True'}),
+            'required': ('django.db.models.fields.BooleanField', [], {'default': 'False'}),
+            'staff_only': ('django.db.models.fields.BooleanField', [], {'default': 'False'})
+        },
+        'helpdesk.emailtemplate': {
+            'Meta': {'ordering': "['template_name', 'locale']", 'object_name': 'EmailTemplate'},
+            'heading': ('django.db.models.fields.CharField', [], {'max_length': '100'}),
+            'html': ('django.db.models.fields.TextField', [], {}),
+            'id': ('django.db.models.fields.AutoField', [], {'primary_key': 'True'}),
+            'locale': ('django.db.models.fields.CharField', [], {'max_length': '10', 'null': 'True', 'blank': 'True'}),
+            'plain_text': ('django.db.models.fields.TextField', [], {}),
+            'subject': ('django.db.models.fields.CharField', [], {'max_length': '100'}),
+            'template_name': ('django.db.models.fields.CharField', [], {'max_length': '100'})
+        },
+        'helpdesk.escalationexclusion': {
+            'Meta': {'object_name': 'EscalationExclusion'},
+            'date': ('django.db.models.fields.DateField', [], {}),
+            'id': ('django.db.models.fields.AutoField', [], {'primary_key': 'True'}),
+            'name': ('django.db.models.fields.CharField', [], {'max_length': '100'}),
+            'queues': ('django.db.models.fields.related.ManyToManyField', [], {'to': "orm['helpdesk.Queue']", 'symmetrical': 'False', 'null': 'True', 'blank': 'True'})
+        },
+        'helpdesk.followup': {
+            'Meta': {'ordering': "['date']", 'object_name': 'FollowUp'},
+            'comment': ('django.db.models.fields.TextField', [], {'null': 'True', 'blank': 'True'}),
+            'date': ('django.db.models.fields.DateTimeField', [], {'default': 'datetime.datetime(2011, 5, 10, 12, 20, 8, 45416)'}),
+            'id': ('django.db.models.fields.AutoField', [], {'primary_key': 'True'}),
+            'new_status': ('django.db.models.fields.IntegerField', [], {'null': 'True', 'blank': 'True'}),
+            'public': ('django.db.models.fields.BooleanField', [], {'default': 'False'}),
+            'ticket': ('django.db.models.fields.related.ForeignKey', [], {'to': "orm['helpdesk.Ticket']"}),
+            'title': ('django.db.models.fields.CharField', [], {'max_length': '200', 'null': 'True', 'blank': 'True'}),
+            'user': ('django.db.models.fields.related.ForeignKey', [], {'to': "orm['auth.User']", 'null': 'True', 'blank': 'True'})
+        },
+        'helpdesk.ignoreemail': {
+            'Meta': {'object_name': 'IgnoreEmail'},
+            'date': ('django.db.models.fields.DateField', [], {'blank': 'True'}),
+            'email_address': ('django.db.models.fields.CharField', [], {'max_length': '150'}),
+            'id': ('django.db.models.fields.AutoField', [], {'primary_key': 'True'}),
+            'keep_in_mailbox': ('django.db.models.fields.BooleanField', [], {'default': 'False'}),
+            'name': ('django.db.models.fields.CharField', [], {'max_length': '100'}),
+            'queues': ('django.db.models.fields.related.ManyToManyField', [], {'to': "orm['helpdesk.Queue']", 'symmetrical': 'False', 'null': 'True', 'blank': 'True'})
+        },
+        'helpdesk.kbcategory': {
+            'Meta': {'ordering': "['title']", 'object_name': 'KBCategory'},
+            'description': ('django.db.models.fields.TextField', [], {}),
+            'id': ('django.db.models.fields.AutoField', [], {'primary_key': 'True'}),
+            'slug': ('django.db.models.fields.SlugField', [], {'max_length': '50', 'db_index': 'True'}),
+            'title': ('django.db.models.fields.CharField', [], {'max_length': '100'})
+        },
+        'helpdesk.kbitem': {
+            'Meta': {'ordering': "['title']", 'object_name': 'KBItem'},
+            'answer': ('django.db.models.fields.TextField', [], {}),
+            'category': ('django.db.models.fields.related.ForeignKey', [], {'to': "orm['helpdesk.KBCategory']"}),
+            'id': ('django.db.models.fields.AutoField', [], {'primary_key': 'True'}),
+            'last_updated': ('django.db.models.fields.DateTimeField', [], {'blank': 'True'}),
+            'question': ('django.db.models.fields.TextField', [], {}),
+            'recommendations': ('django.db.models.fields.IntegerField', [], {'default': '0'}),
+            'title': ('django.db.models.fields.CharField', [], {'max_length': '100'}),
+            'votes': ('django.db.models.fields.IntegerField', [], {'default': '0'})
+        },
+        'helpdesk.presetreply': {
+            'Meta': {'ordering': "['name']", 'object_name': 'PreSetReply'},
+            'body': ('django.db.models.fields.TextField', [], {}),
+            'id': ('django.db.models.fields.AutoField', [], {'primary_key': 'True'}),
+            'name': ('django.db.models.fields.CharField', [], {'max_length': '100'}),
+            'queues': ('django.db.models.fields.related.ManyToManyField', [], {'to': "orm['helpdesk.Queue']", 'symmetrical': 'False', 'null': 'True', 'blank': 'True'})
+        },
+        'helpdesk.queue': {
+            'Meta': {'ordering': "('title',)", 'object_name': 'Queue'},
+            'allow_email_submission': ('django.db.models.fields.BooleanField', [], {'default': 'False'}),
+            'allow_public_submission': ('django.db.models.fields.BooleanField', [], {'default': 'False'}),
+            'email_address': ('django.db.models.fields.EmailField', [], {'max_length': '75', 'null': 'True', 'blank': 'True'}),
+            'email_box_host': ('django.db.models.fields.CharField', [], {'max_length': '200', 'null': 'True', 'blank': 'True'}),
+            'email_box_imap_folder': ('django.db.models.fields.CharField', [], {'max_length': '100', 'null': 'True', 'blank': 'True'}),
+            'email_box_interval': ('django.db.models.fields.IntegerField', [], {'default': "'5'", 'null': 'True', 'blank': 'True'}),
+            'email_box_last_check': ('django.db.models.fields.DateTimeField', [], {'null': 'True', 'blank': 'True'}),
+            'email_box_pass': ('django.db.models.fields.CharField', [], {'max_length': '200', 'null': 'True', 'blank': 'True'}),
+            'email_box_port': ('django.db.models.fields.IntegerField', [], {'null': 'True', 'blank': 'True'}),
+            'email_box_ssl': ('django.db.models.fields.BooleanField', [], {'default': 'False'}),
+            'email_box_type': ('django.db.models.fields.CharField', [], {'max_length': '5', 'null': 'True', 'blank': 'True'}),
+            'email_box_user': ('django.db.models.fields.CharField', [], {'max_length': '200', 'null': 'True', 'blank': 'True'}),
+            'escalate_days': ('django.db.models.fields.IntegerField', [], {'null': 'True', 'blank': 'True'}),
+            'id': ('django.db.models.fields.AutoField', [], {'primary_key': 'True'}),
+            'locale': ('django.db.models.fields.CharField', [], {'max_length': '10', 'null': 'True', 'blank': 'True'}),
+            'new_ticket_cc': ('django.db.models.fields.CharField', [], {'max_length': '200', 'null': 'True', 'blank': 'True'}),
+            'slug': ('django.db.models.fields.SlugField', [], {'max_length': '50', 'db_index': 'True'}),
+            'title': ('django.db.models.fields.CharField', [], {'max_length': '100'}),
+            'updated_ticket_cc': ('django.db.models.fields.CharField', [], {'max_length': '200', 'null': 'True', 'blank': 'True'})
+        },
+        'helpdesk.savedsearch': {
+            'Meta': {'object_name': 'SavedSearch'},
+            'id': ('django.db.models.fields.AutoField', [], {'primary_key': 'True'}),
+            'query': ('django.db.models.fields.TextField', [], {}),
+            'shared': ('django.db.models.fields.BooleanField', [], {'default': 'False'}),
+            'title': ('django.db.models.fields.CharField', [], {'max_length': '100'}),
+            'user': ('django.db.models.fields.related.ForeignKey', [], {'to': "orm['auth.User']"})
+        },
+        'helpdesk.ticket': {
+            'Meta': {'object_name': 'Ticket'},
+            'assigned_to': ('django.db.models.fields.related.ForeignKey', [], {'related_name': "'assigned_to'", 'blank': 'True', 'null': 'True', 'to': "orm['auth.User']"}),
+            'created': ('django.db.models.fields.DateTimeField', [], {'blank': 'True'}),
+            'description': ('django.db.models.fields.TextField', [], {'null': 'True', 'blank': 'True'}),
+            'id': ('django.db.models.fields.AutoField', [], {'primary_key': 'True'}),
+            'last_escalation': ('django.db.models.fields.DateTimeField', [], {'null': 'True', 'blank': 'True'}),
+            'modified': ('django.db.models.fields.DateTimeField', [], {'blank': 'True'}),
+            'on_hold': ('django.db.models.fields.BooleanField', [], {'default': 'False'}),
+            'priority': ('django.db.models.fields.IntegerField', [], {'default': '3', 'blank': '3'}),
+            'queue': ('django.db.models.fields.related.ForeignKey', [], {'to': "orm['helpdesk.Queue']"}),
+            'resolution': ('django.db.models.fields.TextField', [], {'null': 'True', 'blank': 'True'}),
+            'status': ('django.db.models.fields.IntegerField', [], {'default': '1'}),
+            'submitter_email': ('django.db.models.fields.EmailField', [], {'max_length': '75', 'null': 'True', 'blank': 'True'}),
+            'title': ('django.db.models.fields.CharField', [], {'max_length': '200'})
+        },
+        'helpdesk.ticketcc': {
+            'Meta': {'object_name': 'TicketCC'},
+            'can_update': ('django.db.models.fields.BooleanField', [], {'default': 'False'}),
+            'can_view': ('django.db.models.fields.BooleanField', [], {'default': 'False'}),
+            'email': ('django.db.models.fields.EmailField', [], {'max_length': '75', 'null': 'True', 'blank': 'True'}),
+            'id': ('django.db.models.fields.AutoField', [], {'primary_key': 'True'}),
+            'ticket': ('django.db.models.fields.related.ForeignKey', [], {'to': "orm['helpdesk.Ticket']"}),
+            'user': ('django.db.models.fields.related.ForeignKey', [], {'to': "orm['auth.User']", 'null': 'True', 'blank': 'True'})
+        },
+        'helpdesk.ticketchange': {
+            'Meta': {'object_name': 'TicketChange'},
+            'field': ('django.db.models.fields.CharField', [], {'max_length': '100'}),
+            'followup': ('django.db.models.fields.related.ForeignKey', [], {'to': "orm['helpdesk.FollowUp']"}),
+            'id': ('django.db.models.fields.AutoField', [], {'primary_key': 'True'}),
+            'new_value': ('django.db.models.fields.TextField', [], {'null': 'True', 'blank': 'True'}),
+            'old_value': ('django.db.models.fields.TextField', [], {'null': 'True', 'blank': 'True'})
+        },
+        'helpdesk.ticketcustomfieldvalue': {
+            'Meta': {'unique_together': "(('ticket', 'field'),)", 'object_name': 'TicketCustomFieldValue'},
+            'field': ('django.db.models.fields.related.ForeignKey', [], {'to': "orm['helpdesk.CustomField']"}),
+            'id': ('django.db.models.fields.AutoField', [], {'primary_key': 'True'}),
+            'ticket': ('django.db.models.fields.related.ForeignKey', [], {'to': "orm['helpdesk.Ticket']"}),
+            'value': ('django.db.models.fields.TextField', [], {'null': 'True', 'blank': 'True'})
+        },
+        'helpdesk.ticketdependency': {
+            'Meta': {'unique_together': "(('ticket', 'depends_on'),)", 'object_name': 'TicketDependency'},
+            'depends_on': ('django.db.models.fields.related.ForeignKey', [], {'related_name': "'depends_on'", 'to': "orm['helpdesk.Ticket']"}),
+            'id': ('django.db.models.fields.AutoField', [], {'primary_key': 'True'}),
+            'ticket': ('django.db.models.fields.related.ForeignKey', [], {'related_name': "'ticket'", 'to': "orm['helpdesk.Ticket']"})
+        },
+        'helpdesk.usersettings': {
+            'Meta': {'object_name': 'UserSettings'},
+            'id': ('django.db.models.fields.AutoField', [], {'primary_key': 'True'}),
+            'settings_pickled': ('django.db.models.fields.TextField', [], {'null': 'True', 'blank': 'True'}),
+            'user': ('django.db.models.fields.related.OneToOneField', [], {'to': "orm['auth.User']", 'unique': 'True'})
+        }
+    }
+
+    complete_apps = ['helpdesk']
diff --git a/helpdesk/models.py b/helpdesk/models.py
index 804c770c..4520fd32 100644
--- a/helpdesk/models.py
+++ b/helpdesk/models.py
@@ -413,6 +413,16 @@ class Ticket(models.Model):
             )
     staff_url = property(_get_staff_url)
 
+    def _can_be_resolved(self):
+        """
+        Returns a boolean.
+        True = any dependencies are resolved
+        False = There are non-resolved dependencies
+        """
+        OPEN_STATUSES = (Ticket.OPEN_STATUS, Ticket.REOPENED_STATUS)
+        return TicketDependency.objects.filter(ticket=self).filter(depends_on__status__in=OPEN_STATUSES).count() == 0
+    can_be_resolved = property(_can_be_resolved)
+
     if HAS_TAG_SUPPORT:
         tags = TagField(blank=True)
 
@@ -1209,3 +1219,28 @@ class TicketCustomFieldValue(models.Model):
 
     class Meta:
         unique_together = ('ticket', 'field'),
+
+
+class TicketDependency(models.Model):
+    """
+    The ticket identified by `ticket` cannot be resolved until the ticket in `depends_on` has been resolved.
+    To help enforce this, a helper function `can_be_resolved` on each Ticket instance checks that 
+    these have all been resolved.
+    """
+    ticket = models.ForeignKey(
+        Ticket,
+        verbose_name=_('Ticket'),
+        related_name='ticketdependency',
+        )
+
+    depends_on = models.ForeignKey(
+        Ticket,
+        verbose_name=_('Depends On Ticket'),
+        related_name='depends_on',
+        )
+
+    def __unicode__(self):
+        return '%s / %s' % (self.ticket, self.depends_on)
+
+    class Meta:
+        unique_together = ('ticket', 'depends_on')
diff --git a/helpdesk/templates/helpdesk/ticket.html b/helpdesk/templates/helpdesk/ticket.html
index 393a70c9..48372fb8 100644
--- a/helpdesk/templates/helpdesk/ticket.html
+++ b/helpdesk/templates/helpdesk/ticket.html
@@ -82,16 +82,17 @@
         <dd class='form_help_text'>{% trans "You can insert ticket and queue details in your message. For more information, see the <a href='../../help/context/'>context help page</a>." %}</dd>
 
         <dt><label>{% trans "New Status" %}</label></dt>
+        {% if not ticket.can_be_resolved %}<dd>{% trans "This ticket cannot be resolved or closed until the tickets it depends on are resolved." %}</dd>{% endif %}
         {% ifequal ticket.status 1 %}
         <dd><input type='radio' name='new_status' value='1' id='st_open' checked='checked'><label for='st_open' class='active'>{% trans "Open" %}</label> &raquo;
-        <input type='radio' name='new_status' value='3' id='st_resolved'><label for='st_resolved'>{% trans "Resolved" %}</label> &raquo;
-        <input type='radio' name='new_status' value='4' id='st_closed'><label for='st_closed'>{% trans "Closed" %}</label> &raquo;
+        <input type='radio' name='new_status' value='3' id='st_resolved'{% if not ticket.can_be_resolved %} disabled='disabled'{% endif %}><label for='st_resolved'>{% trans "Resolved" %}</label> &raquo;
+        <input type='radio' name='new_status' value='4' id='st_closed'{% if not ticket.can_be_resolved %} disabled='disabled'{% endif %}><label for='st_closed'>{% trans "Closed" %}</label> &raquo;
         <input type='radio' name='new_status' value='5' id='st_duplicate'><label for='st_duplicate'>{% trans "Duplicate" %}</label></dd>
         {% endifequal %}
         {% ifequal ticket.status 2 %}
         <dd><input type='radio' name='new_status' value='2' id='st_reopened' checked='checked'><label for='st_reopened' class='active'>{% trans "Reopened" %}</label> &raquo; 
-        <input type='radio' name='new_status' value='3' id='st_resolved'><label for='st_resolved'>{% trans "Resolved" %}</label> &raquo; 
-        <input type='radio' name='new_status' value='4' id='st_closed'><label for='st_closed'>{% trans "Closed" %}</label> &raquo; 
+        <input type='radio' name='new_status' value='3' id='st_resolved'{% if not ticket.can_be_resolved %} disabled='disabled'{% endif %}><label for='st_resolved'>{% trans "Resolved" %}</label> &raquo; 
+        <input type='radio' name='new_status' value='4' id='st_closed'{% if not ticket.can_be_resolved %} disabled='disabled'{% endif %}><label for='st_closed'>{% trans "Closed" %}</label> &raquo; 
         <input type='radio' name='new_status' value='5' id='st_duplicate'><label for='st_duplicate'>{% trans "Duplicate" %}</label></dd>
         {% endifequal %}
         {% ifequal ticket.status 3 %}
diff --git a/helpdesk/templates/helpdesk/ticket_dependency_add.html b/helpdesk/templates/helpdesk/ticket_dependency_add.html
new file mode 100644
index 00000000..93df3fb4
--- /dev/null
+++ b/helpdesk/templates/helpdesk/ticket_dependency_add.html
@@ -0,0 +1,25 @@
+{% extends "helpdesk/base.html" %}{% load i18n %}
+
+{% block helpdesk_title %}{% trans "Add Ticket Dependency" %}{% endblock %}
+
+{% block helpdesk_body %}{% blocktrans %}
+<h2>Add Ticket Dependency</h2>
+
+<p>Adding a dependency will stop you resolving this ticket until the dependent ticket has been resolved or closed.</p>{% endblocktrans %}
+
+<form method='post' action='./'>
+
+<fieldset>
+    <dl>{% for field in form %}
+        <dt><label for='id_{{ field.name }}'>{{ field.label }}</label></dt>
+        <dd>{{ field }}</dd>
+        {% if field.errors %}<dd class='error'>{{ field.errors }}</dd>{% endif %}
+        {% if field.help_text %}<dd class='form_help_text'>{{ field.help_text }}</dd>{% endif %}
+    {% endfor %}</dl>
+</fieldset>
+
+<input type='submit' value='{% trans "Save Ticket Dependency" %}' />
+
+{% csrf_token %}</form>
+
+{% endblock %}
diff --git a/helpdesk/templates/helpdesk/ticket_dependency_del.html b/helpdesk/templates/helpdesk/ticket_dependency_del.html
new file mode 100644
index 00000000..2a2c99f2
--- /dev/null
+++ b/helpdesk/templates/helpdesk/ticket_dependency_del.html
@@ -0,0 +1,14 @@
+{% extends "helpdesk/base.html" %}{% load i18n %}
+
+{% block helpdesk_title %}{% trans "Delete Ticket Dependency" %}{% endblock %}
+
+{% block helpdesk_body %}{% blocktrans %}
+<h2>Delete Ticket Dependency</h2>
+
+<p>Are you sure you wish to remove the dependency on this ticket?</p>
+{% endblocktrans %}
+
+<p><a href='../../'>{% trans "Don't Delete" %}</a></p>
+
+<form method='post' action='./'><input type='submit' value='{% trans "Yes, Delete" %}' />{% csrf_token %}</form>
+{% endblock %}
diff --git a/helpdesk/templates/helpdesk/ticket_desc_table.html b/helpdesk/templates/helpdesk/ticket_desc_table.html
index 902e3cf0..01239590 100644
--- a/helpdesk/templates/helpdesk/ticket_desc_table.html
+++ b/helpdesk/templates/helpdesk/ticket_desc_table.html
@@ -35,6 +35,19 @@
 </tr>
 {% endif %}
 
+<tr class='{% cycle rowcolors %}'>
+    <th>{% trans "Dependencies" %}</th>
+    <td>{% for dep in ticket.ticketdependency.all %}
+        {% if forloop.first %}<p>{% trans "This ticket cannot be resolved until the following ticket(s) are resolved" %}</p><ul>{% endif %}
+            <li><a href='{{ dep.depends_on.get_absolute_url }}'>{{ dep.depends_on.ticket }} {{ dep.depends_on.title }}</a> ({{ dep.depends_on.get_status_display }}) <a href='{% url helpdesk_ticket_dependency_del ticket.id dep.id %}'>{% trans "Remove Dependency" %}</a></li>
+        {% if forloop.last %}</ul>{% endif %}
+        {% empty %}
+        <p>{% trans "This ticket has no dependencies." %}</p>
+        {% endfor %}
+        <p><a href='{% url helpdesk_ticket_dependency_add ticket.id %}'>{% trans "Add Dependency" %}</a></p>
+    </td>
+</tr>
+
 {% for customfield in ticket.ticketcustomfieldvalue_set.all %}
 <tr class='{% cycle rowcolors %}'>
     <th>{{ customfield.field.label }}</th>
diff --git a/helpdesk/urls.py b/helpdesk/urls.py
index 908d1a02..35433291 100644
--- a/helpdesk/urls.py
+++ b/helpdesk/urls.py
@@ -70,7 +70,15 @@ urlpatterns = patterns('helpdesk.views.staff',
     url(r'^tickets/(?P<ticket_id>[0-9]+)/cc/delete/(?P<cc_id>[0-9]+)/$',
         'ticket_cc_del',
         name='helpdesk_ticket_cc_del'),
+    
+    url(r'^tickets/(?P<ticket_id>[0-9]+)/dependency/add/$',
+        'ticket_dependency_add',
+        name='helpdesk_ticket_dependency_add'),
 
+    url(r'^tickets/(?P<ticket_id>[0-9]+)/dependency/delete/(?P<dependency_id>[0-9]+)/$',
+        'ticket_dependency_del',
+        name='helpdesk_ticket_dependency_del'),
+    
     url(r'^raw/(?P<type>\w+)/$',
         'raw_details',
         name='helpdesk_raw'),
diff --git a/helpdesk/views/staff.py b/helpdesk/views/staff.py
index d8c46eec..2fc1a53b 100644
--- a/helpdesk/views/staff.py
+++ b/helpdesk/views/staff.py
@@ -23,9 +23,9 @@ from django.template import loader, Context, RequestContext
 from django.utils.translation import ugettext as _
 from django.utils.html import escape
 
-from helpdesk.forms import TicketForm, UserSettingsForm, EmailIgnoreForm, EditTicketForm, TicketCCForm, EditFollowUpForm
+from helpdesk.forms import TicketForm, UserSettingsForm, EmailIgnoreForm, EditTicketForm, TicketCCForm, EditFollowUpForm, TicketDependencyForm
 from helpdesk.lib import send_templated_mail, line_chart, bar_chart, query_to_dict, apply_query, safe_template_context
-from helpdesk.models import Ticket, Queue, FollowUp, TicketChange, PreSetReply, Attachment, SavedSearch, IgnoreEmail, TicketCC
+from helpdesk.models import Ticket, Queue, FollowUp, TicketChange, PreSetReply, Attachment, SavedSearch, IgnoreEmail, TicketCC, TicketDependency
 from helpdesk.settings import HAS_TAG_SUPPORT
   
 if HAS_TAG_SUPPORT:
@@ -1037,3 +1037,34 @@ def ticket_cc_del(request, ticket_id, cc_id):
             'cc': cc,
         }))
 ticket_cc_del = staff_member_required(ticket_cc_del)
+
+def ticket_dependency_add(request, ticket_id):
+    ticket = get_object_or_404(Ticket, id=ticket_id)
+    if request.method == 'POST':
+        form = TicketDependencyForm(request.POST)
+        if form.is_valid():
+            ticketdependency = form.save(commit=False)
+            ticketdependency.ticket = ticket
+            if ticketdependency.ticket <> ticketdependency.depends_on:
+                ticketdependency.save()
+            return HttpResponseRedirect(reverse('helpdesk_view', args=[ticket.id]))
+    else:
+        form = TicketDependencyForm()
+    return render_to_response('helpdesk/ticket_dependency_add.html',
+        RequestContext(request, {
+            'ticket': ticket,
+            'form': form,
+        }))
+ticket_dependency_add = staff_member_required(ticket_dependency_add)
+
+def ticket_dependency_del(request, ticket_id, dependency_id):
+    dependency = get_object_or_404(TicketDependency, ticket__id=ticket_id, id=dependency_id)
+    if request.method == 'POST':
+        dependency.delete()
+        return HttpResponseRedirect(reverse('helpdesk_view', args=[ticket_id]))
+    return render_to_response('helpdesk/ticket_dependency_del.html',
+        RequestContext(request, {
+            'dependency': dependency,
+        }))
+ticket_dependency_del = staff_member_required(ticket_dependency_del)
+