diff --git a/democracy/tests/test_comment.py b/democracy/tests/test_comment.py
index f377bddb..347e9bcc 100644
--- a/democracy/tests/test_comment.py
+++ b/democracy/tests/test_comment.py
@@ -39,6 +39,24 @@ def test_55_add_comment_to_hearing(john_doe, john_doe_api_client, default_hearin
     assert data['n_votes'] == 0
 
 
+@pytest.mark.django_db
+def test_add_auth_code_to_comment(api_client, default_hearing):
+    comment_data = get_comment_data(authorization_code="foo6")
+    response = api_client.post(get_hearing_detail_url(default_hearing.id, 'comments'), comment_data)
+    response_data = get_data_from_response(response, status_code=201)
+    assert comment_data["authorization_code"] ==\
+           Hearing.objects.get(pk=default_hearing.pk).comments.get(id=response_data["id"]).authorization_code
+
+
+@pytest.mark.django_db
+def test_list_comments_with_auth_code(api_client, default_hearing):
+    comment_data = get_comment_data(authorization_code="foo6")
+    url = get_hearing_detail_url(default_hearing.id, 'comments')
+    api_client.post(url, comment_data)
+    data = get_data_from_response(api_client.get(url, {"authorization_code": "foo6"}))
+    assert len(data) == 1
+
+
 @pytest.mark.django_db
 def test_54_list_all_comments_added_to_hearing_check_amount(api_client, default_hearing):
     # list all comments
@@ -354,3 +372,47 @@ def test_add_plugin_data_to_comment(api_client, default_hearing, case):
             assert "no plugin data is allowed" in data["plugin_data"][0]
         else:
             raise NotImplementedError("...")
+
+
+@pytest.mark.django_db
+def test_do_not_get_plugin_data_for_comment(api_client, default_hearing):
+    with override_settings(
+        DEMOCRACY_PLUGINS={
+            "test_plugin": "democracy.tests.plug.TestPlugin"
+        }
+    ):
+        section = default_hearing.sections.first()
+        section.plugin_identifier = "test_plugin"
+        section.save()
+        url = get_hearing_detail_url(default_hearing.id, 'sections/%s/comments' % section.id)
+        comment_data = get_comment_data(
+            content="",
+            plugin_data="foo6"
+        )
+        response = api_client.post(url, data=comment_data)
+        response_data = get_data_from_response(response, status_code=201)
+        comment_list = get_data_from_response(api_client.get(url))
+        created_comment = [c for c in comment_list if c["id"] == response_data["id"]][0]
+        assert "plugin_data" not in created_comment
+
+
+@pytest.mark.django_db
+def test_get_plugin_data_for_comment(api_client, default_hearing):
+    with override_settings(
+        DEMOCRACY_PLUGINS={
+            "test_plugin": "democracy.tests.plug.TestPlugin"
+        }
+    ):
+        section = default_hearing.sections.first()
+        section.plugin_identifier = "test_plugin"
+        section.save()
+        url = get_hearing_detail_url(default_hearing.id, 'sections/%s/comments' % section.id)
+        comment_data = get_comment_data(
+            content="",
+            plugin_data="foo6"
+        )
+        response = api_client.post(url, data=comment_data)
+        response_data = get_data_from_response(response, status_code=201)
+        comment_list = get_data_from_response(api_client.get(url, {"include": "plugin_data"}))
+        created_comment = [c for c in comment_list if c["id"] == response_data["id"]][0]
+        assert created_comment["plugin_data"] == comment_data["plugin_data"][::-1]  # The TestPlugin reverses data
diff --git a/democracy/views/comment.py b/democracy/views/comment.py
index 71c88405..23e9f1ac 100644
--- a/democracy/views/comment.py
+++ b/democracy/views/comment.py
@@ -1,8 +1,9 @@
 # -*- coding: utf-8 -*-
+import django_filters
 from django.core.exceptions import ValidationError
 from django.db import transaction
 from django.utils.encoding import force_text
-from rest_framework import permissions, response, serializers, status, viewsets
+from rest_framework import filters, permissions, response, serializers, status, viewsets
 from rest_framework.decorators import detail_route
 from reversion import revisions
 
@@ -15,11 +16,27 @@
 
 class BaseCommentSerializer(AbstractSerializerMixin, CreatedBySerializer, serializers.ModelSerializer):
 
+    def to_representation(self, instance):
+        r = super().to_representation(instance)
+        request = self.context.get('request', None)
+        if request:
+            if request.GET.get('include', None) == 'plugin_data':
+                r['plugin_data'] = instance.plugin_data
+        return r
+
     class Meta:
         model = BaseComment
         fields = COMMENT_FIELDS
 
 
+class BaseCommentFilter(django_filters.FilterSet):
+    authorization_code = django_filters.CharFilter()
+
+    class Meta:
+        model = BaseComment
+        fields = ['authorization_code', ]
+
+
 class BaseCommentViewSet(AdminsSeeUnpublishedMixin, viewsets.ModelViewSet):
     """
     Base viewset for comments.
@@ -27,6 +44,8 @@ class BaseCommentViewSet(AdminsSeeUnpublishedMixin, viewsets.ModelViewSet):
     permission_classes = (permissions.AllowAny,)
     serializer_class = None
     create_serializer_class = None
+    filter_backends = (filters.DjangoFilterBackend,)
+    filter_class = BaseCommentFilter
 
     def get_serializer(self, *args, **kwargs):
         serializer_class = kwargs.pop("serializer_class", None) or self.get_serializer_class()
diff --git a/democracy/views/section_comment.py b/democracy/views/section_comment.py
index cea0ec40..1de39878 100644
--- a/democracy/views/section_comment.py
+++ b/democracy/views/section_comment.py
@@ -6,9 +6,7 @@
 
 from democracy.models import SectionComment
 from democracy.models.section import Section
-from democracy.views.comment import COMMENT_FIELDS, BaseCommentViewSet
-
-from .base import CreatedBySerializer
+from democracy.views.comment import COMMENT_FIELDS, BaseCommentViewSet, BaseCommentSerializer
 
 
 class SectionCommentCreateSerializer(serializers.ModelSerializer):
@@ -44,7 +42,7 @@ def validate(self, attrs):
         return attrs
 
 
-class SectionCommentSerializer(CreatedBySerializer, serializers.ModelSerializer):
+class SectionCommentSerializer(BaseCommentSerializer):
     """
     Serializer for comment added to section.
     """