A bicycle was stolen from outside Lings Forum in Northampton after a thief used bolt croppers to cut through a lock.
The theft took place at 2.50pm on Saturday, March 26 and police have released a photograph of someone they would like to speak to in relation to the incident.
Police said the alleged offender is believed to be aged between 14 and 16 years old, was wearing a coat, jeans and black trainers and carrying a back pack.
Officers would like to speak to anyone who may have witnessed this incident or who may have any information about it.
Witnesses or anyone with information about this incident can contact police on 101 or Crimestoppers anonymously on 0800 555 111.