' X ' marks have been spotted on garden sheds in Lanarkshire , East Kilbride . Other codes suggest occupant is vulnerable or that property has an alarm . Another mark tells burglars if there is nothing worth stealing in the building .
' X ' marks have been spotted on garden sheds in East Kilbride , Lanarkshire . Other codes suggest occupant is vulnerable or that property has an alarm . Another mark tells burglars if there is nothing worth stealing in the building .