Arrestable offence is a legal term now obsolete in English law and the legal system of Northern Ireland, but still used in the legal system of the Republic of Ireland. The Criminal Law Act 1967 introduced the category to replace the ancient term felony. That Act had been superseded by the Police and Criminal Evidence Act 1984, which over the next two decades was itself significantly amended to increase police powers of arrest, relating in particular to entry, search following arrest and to custody. In England and Wales, the category "arrestable offence" ceased to exist with the advent on 1 January 2006 of the Serious Organised Crime and Police Act. In Northern Ireland, it ceased to exist with the advent of the Police and Criminal Evidence (Amendment) (Northern Ireland) Order 2007. In the Republic of Ireland, the Criminal Law Act 1997 abolished the terms felony and misdemeanour and created the term "arrestable offence" in their place.

England and Wales

Definition

Section 24 of the Police and Criminal Evidence Act 1984 defined an arrestable offence as:

Other arrest powers

In addition to being able to arrest for an arrestable offence as defined above, section 25 provided further powers of arrest for "non-arrestable offences" in certain circumstances. This had no equivalent in the original 1967 legislation. They were as follows:

Replacement

With the increasing number of newly created offences being included in Schedule 1A and thus being made arrestable, the Serious Organised Crime and Police Act 2005 abolished the category of arrestable offence, replacing the dual rules with a single set of criteria for all offences. The question now for police is whether it is "necessary" to arrest the relevant person, by reference to various broadly-drafted statutory criteria. The general arrest conditions are:

Northern Ireland

Definition

Section 24 of the Police and Criminal Evidence (Northern Ireland) Order 1989 defined an arrestable offence as: A constable may also have arrested for an offence if the conditions of Article 27 were satisfied.

Replacement

The powers to arrest under the 1987 Order were replaced by near-identical criteria as for England & Wales. A constable may arrest for any offence if the conditions below are satisfied:

Republic of Ireland

Definition

Section 2 of the Criminal Law Act, 1997 defines an arrestable offence as follows: