United Kingdom – The Pedal Cycles (Construction and Use) Regulations 1983 require pedal cycles ""so constructed that one or more of the wheels is incapable of rotating independently of the pedals, be equipped with a braking system operating on the front wheel""; riding a fixed-gear bicycle with no front brake on the street is illegal. Following the conviction of UK cyclist Charlie Alliston, who knocked over and killed a woman whilst riding a fixed-gear bicycle with no front brake, the UK Government announced a review of the laws covering "dangerous cycling" in September 2017. A brake on the rear wheel is only required for free-wheel bicycles.