diff --git a/evidence/forms.py b/evidence/forms.py
index 2e49a6d..7eaf0ca 100644
--- a/evidence/forms.py
+++ b/evidence/forms.py
@@ -9,7 +9,6 @@ from evidence.models import Annotation
 
 
 class UploadForm(forms.Form):
-
     evidence_file = MultipleFileField(label=_("File"))
 
     def clean(self):
@@ -47,3 +46,30 @@ class UploadForm(forms.Form):
 
         for ev in self.evidences:
             Build(ev[1], user)
+
+
+class UserTagForm(forms.Form):
+    tag = forms.CharField(label=_("Tag"))
+
+    def __init__(self, *args, **kwargs):
+        self.uuid = kwargs.pop('uuid', None)
+        super().__init__(*args, **kwargs)
+
+    def clean(self):
+        data = self.cleaned_data.get('tag')
+        if not data:
+            return False
+        self.tag = data
+        return True
+
+    def save(self, user, commit=True):
+        if not commit:
+            return
+
+        Annotation.objects.create(
+            uuid=self.uuid,
+            owner=user,
+            type=Annotation.Type.SYSTEM,
+            key='CUSTOM_ID',
+            value=self.tag
+        )
diff --git a/evidence/templates/ev_details.html b/evidence/templates/ev_details.html
index 2289f84..e589d2f 100644
--- a/evidence/templates/ev_details.html
+++ b/evidence/templates/ev_details.html
@@ -45,5 +45,29 @@
       {% endfor %}
     </div>
   </div>
+  <div class="tab-pane fade" id="tag">
+    {% load django_bootstrap5 %}
+    <div class="list-group col-6">
+      <form role="form" method="post">
+        {% csrf_token %}
+        {% if form.errors %}
+        <div class="alert alert-danger alert-icon alert-icon-border alert-dismissible" role="alert">
+          <div class="icon"><span class="mdi mdi-close-circle-o"></span></div>
+          <div class="message">
+            {% for field, error in form.errors.items %}
+              {{ error }}<br />
+            {% endfor %}
+            <button class="btn-close" type="button" data-dismiss="alert" aria-label="Close"></button>
+          </div>
+        </div>
+        {% endif %}
+	{% bootstrap_form form %}
+        <div class="container">
+          <a class="btn btn-grey" href="{% url 'dashboard:unassigned_devices' %}">{% translate "Cancel" %}</a>
+          <input class="btn btn-green-admin" type="submit" name="submit" value="{% translate 'Save' %}" />
+        </div>
+      </form>
+    </div>
+  </div>
 </div>
 {% endblock %}
diff --git a/evidence/views.py b/evidence/views.py
index 58a0d56..a9459e1 100644
--- a/evidence/views.py
+++ b/evidence/views.py
@@ -7,7 +7,7 @@ from django.views.generic.edit import (
 
 from dashboard.mixins import  DashboardView, Http403
 from evidence.models import Evidence
-from evidence.forms import UploadForm
+from evidence.forms import UploadForm, UserTagForm
 # from django.shortcuts import render
 # from rest_framework import viewsets
 # from snapshot.serializers import SnapshotSerializer
@@ -51,12 +51,14 @@ class UploadView(DashboardView, FormView):
         response = super().form_invalid(form)
         return response
 
-        
-class EvidenceView(DashboardView, TemplateView):
+
+class EvidenceView(DashboardView, FormView):
     template_name = "ev_details.html"
     section = "evidences"
     title = _("Evidences")
     breadcrumb = "Evidences / Details"
+    success_url = reverse_lazy('evidence:list')
+    form_class = UserTagForm
 
     def get(self, request, *args, **kwargs):
         self.pk = kwargs['pk']
@@ -73,3 +75,22 @@ class EvidenceView(DashboardView, TemplateView):
             'object': self.object,
         })
         return context
+
+    def get_form_kwargs(self):
+        self.pk = self.kwargs.get('pk')
+        kwargs = super().get_form_kwargs()
+        kwargs['uuid'] = self.pk
+        return kwargs
+
+    def form_valid(self, form):
+        form.save(self.request.user)
+        response = super().form_valid(form)
+        return response
+
+    def form_invalid(self, form):
+        response = super().form_invalid(form)
+        return response
+
+    def get_success_url(self):
+        success_url = reverse_lazy('evidence:details', args=[self.pk])
+        return success_url
diff --git a/lot/views.py b/lot/views.py
index 0045d16..280450e 100644
--- a/lot/views.py
+++ b/lot/views.py
@@ -162,7 +162,7 @@ class LotDocumentsView(DashboardView, TemplateView):
     template_name = "documents.html"
     title = _("New Document")
     breadcrumb = "Device / New document"
-    
+
     def get_context_data(self, **kwargs):
         self.pk = kwargs.get('pk')
         context = super().get_context_data(**kwargs)
@@ -185,7 +185,7 @@ class LotAnnotationsView(DashboardView, TemplateView):
     template_name = "annotations.html"
     title = _("New Annotation")
     breadcrumb = "Device / New annotation"
-    
+
     def get_context_data(self, **kwargs):
         self.pk = kwargs.get('pk')
         context = super().get_context_data(**kwargs)
@@ -203,7 +203,7 @@ class LotAnnotationsView(DashboardView, TemplateView):
         })
         return context
 
-    
+
 class LotAddAnnotationView(DashboardView, CreateView):
     template_name = "new_annotation.html"
     title = _("New Annotation")