In addition they should carry a polythene bag or newspaper with them to pick up their dog poo. Failure to do so may result in a resident reporting them to the Anti-littering arm of NEA.
The photo below was taken on 26 Jun 2013 when the dog owner walked his dog 20 houses away from his to encourage his dog to defecate in front of a resident's house, using the common coaxing words of "poo-poo, poo-poo".
This is bad behaviour on the part of the dog owner. It is a premeditated offence as he has been alerted to this offence before. It is a matter of time before this kind of anti-social behaviour is reported to the authorities for appropriate action.