The guidance provides advice on how to protect lead from theft, as well as offering guidance and practical information on how to respond when a theft has taken place.
Mae'r canllawiau'n rhoi cyngor ar sut i ddiogelu gwaith plwm rhag achosion o ddwyn, yn ogystal â chynnig canllawiau a gwybodaeth ymarferol am sut i ymateb mewn achos o ddwyn.