What is a byelaw, and what can councils actually enforce?
A byelaw is a local law made by a council or other authorised body, and it is far more limited than people assume — a council cannot simply invent rules and enforce them.
The essential constraint: a byelaw needs statutory authority. A council can only make byelaws where an Act of Parliament has given it the power to do so, on the subject in question. Without that enabling power, no byelaw exists. Byelaws generally also require confirmation by the relevant Secretary of State, must be publicised, and can be challenged in court as ultra vires — beyond the authority granted.
What byelaws typically cover: behaviour in parks and open spaces; on beaches and waterways; in markets, cemeteries and burial grounds; hackney carriage licensing; and various forms of public nuisance. They are enforced through the magistrates' courts, usually by fine.
Byelaws are frequently old and rarely used, and enforcement by prosecution is slow. Which is why councils largely rely on more modern tools instead.
The instruments councils actually use now, under the Anti-social Behaviour, Crime and Policing Act 2014:
Public Spaces Protection Orders (PSPOs) — the workhorse. These prohibit specified activities in a defined area, and are used for dog control, drinking, street drinking, begging and various nuisances. Breach is a criminal offence, enforceable by a fixed penalty notice. PSPOs have been criticised for breadth and for being used against rough sleeping, and they require consultation and periodic review.
Community Protection Notices, aimed at individuals or businesses.
Civil injunctions and closure powers.
Fixed penalty notices for littering, fly-tipping and dog fouling.
Civil enforcement of parking, which is a different regime again — most parking enforcement is civil, not criminal, which is why appeals go to an adjudicator rather than a court.
What councils cannot do: create criminal offences without statutory backing; enforce rules they have not properly made and publicised; or issue penalties with no route of appeal. Signage is not law — a notice in a park stating a rule does not establish one.
Check the council's published list, which authorities are required to maintain.
General information, not legal advice.