diff --git a/FilterLists.sln b/FilterLists.sln
index ba3941778..3854315e0 100644
--- a/FilterLists.sln
+++ b/FilterLists.sln
@@ -41,6 +41,7 @@ EndProject
 Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = "sql", "sql", "{A4BB2C81-5232-4162-B410-704D123D2C01}"
 	ProjectSection(SolutionItems) = preProject
 		scripts\sql\createDb.sql = scripts\sql\createDb.sql
+		scripts\sql\monitorForDuplicateRules.sql = scripts\sql\monitorForDuplicateRules.sql
 		scripts\sql\resetSnapshotsRules.sql = scripts\sql\resetSnapshotsRules.sql
 		scripts\sql\snapshotTimeAnalysis.sql = scripts\sql\snapshotTimeAnalysis.sql
 	EndProjectSection
diff --git a/scripts/sql/monitorForDuplicateRules.sql b/scripts/sql/monitorForDuplicateRules.sql
new file mode 100644
index 000000000..c85a97d1c
--- /dev/null
+++ b/scripts/sql/monitorForDuplicateRules.sql
@@ -0,0 +1,4 @@
+SELECT raw, COUNT(*) ct
+FROM rules
+GROUP BY raw
+HAVING c > 1;
\ No newline at end of file