Suffolk police have released a CCTV image of a man they wish to trace following an assault in Mildenhall.
The assault on a member of staff at Co-Op in King Street, Mildenhall occurred after staff tried to prevent the theft of beer.
Three men had entered the shop on Saturday March 31.
One took cans of Stella Artois from a shelf and moved to the back of the store to avoid the check-outs.
He was confronted by a member of staff who he pushed in the chest before running off down Kings Street towards Kingsway.
PC James Vincent said: “We are continuing to investigate the incident and are keen to hear from anyone who could identify the man pictured in the CCTV image.”
Anyone with information should contact PC Vincent, quoting crime number MH/12/619 on 101, or Crimestoppers anonymously on 0800 555 111.