A DOUBLE-edged warning for residents and burglars is being issued on Teesside.

Stickers carrying a two-way message are being distributed at libraries throughout Redcar and Cleveland.

Designed to be displayed on front doors, they warn callers: "We don't buy or sell at this door. We require identification we can verify."

Inside the door is the second part of the message aimed at householders: "Stop. Is the chain on? Who is that person? Identification is required."

Doug Butterfield, chairman of the Langbaurgh Crime Prevention Panel, said: "I am sure these warning stickers will be helpful to the majority of householders. The message is clearly visible to the caller that the resident of that house will not purchase goods on the doorstep and it reminds people to be sure of the caller's identity before allowing entry."

Detective Superintendent Steve Richards, chairman of the Redcar and Cleveland Burglary Task Group, said: "Despite repeated warnings, conmen still trick their way into homes, and old people are a favourite prey.

"Having a face-to-face warning will make many residents stop and think."