Surrey Police have begun sending plain-clothes female officers on running routes in civilian sportswear as part of “Jog On,” a new initiative intended to deter and prosecute catcalling and other forms of street harassment. Support teams shadow the runners and intervene when harassment occurs, allowing officers to identify offenders on the spot. The tactic was first tested in the borough of Reigate and Banstead and is now being expanded county-wide. The force says it has already carried out a number of interventions, issuing on-the-spot warnings and offering “education around anti-social behaviour,” and has pledged to pursue criminal charges against repeat or serious offenders. Inspector Jon Vale said the programme responds to a Surrey County Council survey of 450 female residents in which 49 percent said they never report harassment. PC Abi Hayward, one of the volunteers, said the presence of undercover officers should signal that such behaviour "isn't right" and will not be tolerated. Civil-liberties group Free Speech Union has criticised the operation as a "bizarre social-psychology experiment," arguing police resources should prioritise more serious crime. Surrey Police counter that preventing harassment before it escalates is integral to public safety and confidence.