William Stephen Goulden "Willy" Bach, Baron Bach is a British Labour member of the House of Lords. He was a Parliamentary Under-Secretary of State in the Ministry of Justice from 2008 to 2010. He resigned from the opposition front bench when he was elected the Leicestershire Police and Crime Commissioner on 6 May 2016. He did not stand again at the 2021 PCC election and was succeeded by the Conservative Rupert Matthews.

The Leicestershire Police and Crime Commissioner (PCC) is the police and crime commissioner, an elected official, tasked with setting out the way crime is tackled by Leicestershire Police in the English counties of Leicestershire and Rutland. The post was created in November 2012, following an election held on 15 November 2012, and replaced the Leicestershire Police Authority. The current incumbent is Rupert Matthews, who represents the Conservative Party.