diff --git a/source/_images/subject-tabs.png b/source/_images/subject-tabs.png
index 3b06790299aa43fccd0b56aa5fe1c46e3225a3eb..870a12c46578d3ad7718d9fb82191c650979f695 100644
Binary files a/source/_images/subject-tabs.png and b/source/_images/subject-tabs.png differ
diff --git a/source/features.rst b/source/features.rst
index c909423fdb2a7938557c365c03fbec85ff813e99..8f4cc7cacbd6b3e90382083ff4415ec9758f7055 100644
--- a/source/features.rst
+++ b/source/features.rst
@@ -18,6 +18,8 @@ Relevant guides:
 -   :ref:`subject-get-pseudonym`
 -   :ref:`subject-to-be-deleted`
 -   :ref:`subject-delete`
+-   :ref:`subject-report`
+-   :ref:`subject-block`
 -   :ref:`subject-add-to-study`
 -   :ref:`study-create`
 -   :ref:`study-domains`
diff --git a/source/guides/subject-management.rst b/source/guides/subject-management.rst
index f02f4e2019c41ac565e3cb529e8e41156f7536b3..d5e89a8300b1d4a8e606a520d085e9d875bfde88 100644
--- a/source/guides/subject-management.rst
+++ b/source/guides/subject-management.rst
@@ -316,6 +316,62 @@ please proceed as follows:
     appear in the :ref:`data protection dashboard <data-protection-dashboard>`.
 
 
+.. _subject-report:
+
+Report a subject
+================
+
+If you experience inappropriate behavior from a subject and you have reason to
+believe that this subject should never be invited again to participate in any
+study, you can file a report which will be sent to the assigned reviewers to
+handle.
+
+1.  Go to a page for that subject (either in subject management, recruitment,
+    or execution) by following the steps in :ref:`subject-search`.
+
+2.  In the header, under the name of the subject, click on **report**
+
+3.  You have the option to add wishes, regarding the handling of the report,
+    by writing them into the textbox under **Additional wishes (optional)**
+
+    -   For example, if the incident was traumatic and you need additional
+        support, you can write **I would like to talk to someone about this
+        incident**, or even **I would like to talk to someone of my own gender
+        about this incident**
+
+4.  To finalize the report, click on **Send report**
+
+
+.. hint::
+
+    It is required to configure at least one email address that should receive
+    email notifications about new subject reports and handle them. Please ask
+    your system administrator to setup ``CASTELLUM_REPORT_NOTIFICATION_TO``.
+
+
+.. _subject-block:
+
+Block a subject
+===============
+
+If a subject has been reported for inappropriate behavior, then an email will
+be sent to the email addresses of the reviewers that are listed in
+``CASTELLUM_REPORT_NOTIFICATION_TO``. For privacy reasons, no information
+except for the link to the report is included in the mail.
+
+After opening the link to the report, a reviewer will be shown:
+
+    - The **name of the subject** that was reported
+    - The **name of the user** that made the report
+    - The **additional wishes** of the user, if they have provided any
+
+Reviewers can then decide what to do with the report:
+
+    - If they want to block the subject, reviewers can click on **Block subject**
+    - If they don't want to block the subject, reviewers can click on **Discard report**
+    - In both cases, the report is deleted, for privacy reasons.
+
+
 .. _subject-add-to-study:
 
 Add a subject to a study
diff --git a/source/roles.rst b/source/roles.rst
index 393fcdb08246df8d4553868a3c0c0c7a15eb717b..3545b1fe4186153337143c3a2f4c05fd27c4ecf0 100644
--- a/source/roles.rst
+++ b/source/roles.rst
@@ -29,6 +29,7 @@ Relevant guides:
 -   :ref:`subject-create`
 -   :ref:`subject-edit`
 -   :ref:`subject-to-be-deleted`
+-   :ref:`subject-report`
 -   :ref:`subject-consent`
 -   :ref:`subject-add-to-study`
 
@@ -84,6 +85,7 @@ Relevant guides:
 -   :ref:`data-protection-dashboard`
 -   :ref:`subject-export`
 -   :ref:`subject-delete`
+-   :ref:`subject-block`
 -   :ref:`study-delete`
 
 Administrator
@@ -129,6 +131,7 @@ process.
 Relevant guides:
 
 -   :ref:`subject-search`
+-   :ref:`subject-report`
 -   :ref:`recruitment`
 -   :ref:`recruitment-mail`
 -   :ref:`recruitment-appointments`
@@ -145,6 +148,7 @@ pseudonyms of the respective subjects in the database.
 Relevant guides:
 
 -   :ref:`subject-search`
+-   :ref:`subject-report`
 -   :ref:`subject-get-pseudonym`
 -   :ref:`recruitment-appointments`
 -   :ref:`make-appointments-with-external-scheduler`