The Co-operative Group said its first cop shop had been such a success that it is looking to expand the initiative.
It opened an office for a team of six neighbourhood police officers within the Eltham store in south-east London in April.
A spokesman for the co-op said the initiative had boosted staff morale and eased anti-social behaviour in the area.
He added: “We are exploring other stores where we could implement a similar set-up and are talking to Metropolitan Police and local authorities about how feasible it would be to have offices in stores elsewhere.”