24 Hours in Police Custody is a British television documentary series shown on Channel 4. It primarily follows Bedfordshire Police as they investigate cases in Luton. The programme is made by The Garden; the same production company that makes 24 Hours in A&E.

Most episodes follow an individual case. The title refers to the fact that police may only hold suspects in custody for 24 hours before either having to release them, bring charges or apply for an extension to this time in the case of serious crimes, such as murder.

The first series of seven episodes aired in late 2014. Filming took place at Luton Police Station over a six-week period using more than 80 cameras. Channel 4 commissioned further series, with the second airing in early 2015. A few episodes have taken place wholly or partly elsewhere in Bedfordshire and in Cambridgeshire. Series 10 began broadcasting on 22 March 2021.