You can call them the silent robberies. No gunshots, no alarm raised, no injuries, no chase, but cash and valuables gone in a flash. It's the new way of doing business by Nairobi's daylight robbers whose brazenness has baffled police. Police are appealing to the public to volunteer information on the identities of a four-man gang captured on camera committing a robbery within the central business district. The four made a dramatic raid on an M-Pesa Bureau and stole cash and valuable in the most casual way and as Francis Mutegi now reports for Nation TV in Kenya, they could easily have passed for any other customer.