Robinson-Solutions Professional Window Cleaning: Those Chalk Symbols Outside Homes
Da Pinchi codes' not for burglars, say police - BBC News
List of signs and symbols believed to be used by BURGLERS emerges online | UK | News | Express.co.uk
Organised_Chao5 on Twitter: "These chalk markings have been spotted on walls outside some of the houses on my road. My house is one of them Apparently some networks of burglars use chalk
Swale police come clean over mysterious markings outside your house