diff --git a/.woodpecker/build.yml b/.woodpecker/build.yml
index 024f459..ca92b21 100644
--- a/.woodpecker/build.yml
+++ b/.woodpecker/build.yml
@@ -4,6 +4,7 @@ pipeline:
     commands:
       - ./.woodpecker/check_dangling_theories
       - ./.woodpecker/check_external_file_refs
+      - ./.woodpecker/check_quick_and_dirty -w
       - export ARTIFACT_DIR=$CI_WORKSPACE/.artifacts/$CI_REPO/$CI_BRANCH/$CI_BUILD_NUMBER/$LATEX
       - mkdir -p $ARTIFACT_DIR
       - export `isabelle getenv ISABELLE_HOME_USER`
diff --git a/.woodpecker/check_quick_and_dirty b/.woodpecker/check_quick_and_dirty
new file mode 100755
index 0000000..b4aab2e
--- /dev/null
+++ b/.woodpecker/check_quick_and_dirty
@@ -0,0 +1,30 @@
+#!/bin/bash
+
+set -e
+
+failuremsg="Error"
+failurecode=1
+
+while [ $# -gt 0 ]
+do
+    case "$1" in
+        --warning|-w)
+            failuremsg="Warning"
+            failurecode=0;;
+    esac
+    shift
+done
+
+echo "Checking for sessions with quick_and_dirty mode enabled:"
+echo "========================================================"
+
+rootlist=`find -name 'ROOT' -exec grep -l 'quick_and_dirty *= *true' {} \;`
+
+if [ -z "$rootlist" ] ; then
+    echo "  * Success: No sessions with quick_and_dirty mode enabled found."
+    exit 0
+else
+    echo -e "$rootlist"
+    echo "$failuremsg: Sessions with quick_and_dirty mode enabled found (see list above)!" 
+    exit $failurecode 
+fi