A reward of up to £10,000 is being offered for information which leads to the conviction of a man who committed an armed robbery at a Brighton betting shop in November.
Detectives investigating the incident at Ladbrokes in Arundel Road, Kemp Town, have also issued an image of the offender which was caught on CCTV in the shop.
He was handed £130 and was seen to walk out of the shop to the junction with Eastern Road where he met two other men who were wearing dark clothing.
Nobody was assaulted or hurt.
The suspect is described as white, with Liverpudlian accent, between 5ft 6in and 5ft 10in tall, of slim build, wearing a dark coat and a scarf round his face.
Detective Constable Jane Walker said: “Someone out there must know who committed this robbery or who the two men the offender met with shortly afterwards are.”