Compulsory fitness testing was introduced as part of the implementation of aspects of the Winsor review into the future of policing. Tom Winsor, a lawyer commissioned to undertake the review, suggested that all officers should be made to take an annual “bleep” test — in which participants complete a 15-metre shuttle run in shorter time periods. The tests mirror those undertaken by new recruits applying to join the police force. The Winsor review highlighted concerns that some officers were failing to keep up fitness levels and were no longer able to undertake some of the most basic physical requirements in the line of duty.