diff --git a/core/dcschema_enum_instances.mcf b/core/dcschema_enum_instances.mcf
index 18b90d74..db00f217 100644
--- a/core/dcschema_enum_instances.mcf
+++ b/core/dcschema_enum_instances.mcf
@@ -1537,6 +1537,23 @@ Node: dcid:SexualViolence
 typeOf: dcs:CrimeTypeEnum
 name: "SexualViolence"
 
+Node: dcid:KnownOffender
+typeOf:OffenderTypeEnum
+specializationOf:OffenderAttributesKnown
+name:"Known Offender"
+
+Node: dcid:KnownOffenderAge
+typeOf:OffenderTypeEnum
+name:"Known Offender Age"
+
+Node: dcid:KnownOffenderEthnicity
+typeOf:OffenderTypeEnum
+name:"Known Offender Ethnicity"
+
+Node: dcid:KnownOffenderRace
+typeOf:OffenderTypeEnum
+name:"Known Offender Race"
+
 Node: dcid:SingleBias
 typeOf: dcs:BiasMotivationEnum
 name: "SingleBias"