The Public Order Act 2023 (c. 15), referred to during its passage through Parliament as the public order bill and the anti-protest bill,[1] is an Act of the Parliament of the United Kingdom which gave law enforcement agencies in the United Kingdom greater powers to prevent protest tactics deemed "disruptive" such as those used by climate protestors.

[2][10] Measures previously rejected by the House of Lords in consideration of the Police, Crime, Sentencing and Courts Act 2022, including banning individuals from protests, were reintroduced.

[16] Following a months-long parliamentary ping-pong, conflicts between the two Houses were ultimately resolved on 26 April 2023, when the Lords decided by voice vote not to insist on amendments the Commons disagreed with.

The sections of the act creating the offences related to locking on as well as interference with key national infrastructure came into force by statutory instrument on 3 May 2023.

[20] In October 2022, the Parliament of the United Kingdom's Joint Committee on Human Rights said: "it is concerned the offence could encompass demonstrators who simply link arms with each other, and that it should be amended.