A customer’s jacket was stolen from a clothes peg as they tried on an item of clothing in Peacocks in High Street, Kettering.
Officers have released this CCTV image of two women they would like to speak to in connection with the incident, which happened just before 2pm on Thursday, January 28.
The offenders are both white and of medium build.
One had dark-brown, tied-back hair and wore a short grey or light-brown fur coat.
The other had shoulder-length blonde hair and wore a green top, a black jacket, dark trousers and black shoes.
She was carrying a black shoulder bag.
Police would like to speak to anyone who witnessed the incident or has any information about it.
Witnesses are asked to contact police on 101 or Crimestoppers anonymously on 0800 555111.