Any Person Power of Arrest Without Warrant

Part 3 Section 110 of the Serious Organised Crime and Police Act 2005 states that
110 Powers of arrest (1)For section 24 of PACE (arrest without warrant for arrestable offences) substitute— (only arrest without warrant by other persons (i.e private citizens) is detailed on this page)....

24A Arrest without warrant: other persons

(1)A person other than a constable may arrest without a warrant—
(a)anyone who is in the act of committing an indictable offence;
(b)anyone whom he has reasonable grounds for suspecting to be committing an indictable offence.

(2)Where an indictable offence has been committed, a person other than a constable may arrest without a warrant—
(a)anyone who is guilty of the offence;
(b)anyone whom he has reasonable grounds for suspecting to be guilty of it.

(3)But the power of summary arrest conferred by subsection (1) or (2) is exercisable only if—
(a)the person making the arrest has reasonable grounds for believing that for any of the reasons mentioned in subsection (4) it is necessary to arrest the person in question; and
(b)it appears to the person making the arrest that it is not reasonably practicable for a constable to make it instead.

(4)The reasons are to prevent the person in question—
(a)causing physical injury to himself or any other person;
(b)suffering physical injury;
(c)causing loss of or damage to property; or
(d)making off before a constable can assume responsibility for him.”

An Act to provide for the establishment and functions of the Serious Organised Crime Agency; to make provision about investigations, prosecutions, offenders and witnesses in criminal proceedings and the protection of persons involved in investigations or proceedings; to provide for the implementation of certain international obligations relating to criminal matters; to amend the Proceeds of Crime Act 2002; to make further provision for combatting crime and disorder, including new provision about powers of arrest and search warrants and about parental compensation orders; to make further provision about the police and policing and persons supporting the police; to make provision for protecting certain organisations from interference with their activities; to make provision about criminal records; to provide for the Private Security Industry Act 2001 to extend to Scotland; and for connected purposes.