Wales. Nevertheless, similar legislation, together with appropriate codes of practice, will come into operation in Northern Ireland eary in 1990. 112. Detention under the Prevention of Terrorism (Temporary Provisions) Act 1989 is now subject to reviews similar to those carried out in respect of persons detained under the Police and Criminal Evidence Act 1984 mentioned above (para. 109 (e)). The review system took effect on 1 September 1989. This followed a recommendation of an independent reviewer, Lord Colville QC, who looked at the legislation on prevention of terrorism. These new reviews must be carried out by a police officer of at least the rank of inspector or, where the person has been detained for over 24 hours, by a superintendent. The review scheme is statutory and applies throughout the United Kingdom; it was brought into force on 1 September 1989 and applies to detentions at ports (schedule 5 to the 1989 Act) as well as to arrests made under section 14 of the Act. The police officer reviewing the detention is required to consider the need for continued detention and, where appropriate, the need to withhold the right of the detained person to have someone informed of his arrest and to see a solicitor. Police powers in Northern Ireland 113. The powers of the police in dealing with non-terrorist crime are similar to those in England and Wales; the Police and Criminal Evidence (Northern Ireland) Order 1989 contains largely equivalent provisions to those in the Police and Criminal Evidence Act 1984. Police procedures will similarly be govered by statutory codes of practice: the principal differences concern the right to silence (see paras. 214-216 below) and the taking of intimate body samples. 114. The powers of the police and army in Northern Ireland in relation to 
**Analysis**
The text appears to be discussing the laws and regulations related to the prevention of terrorism and the powers of the police in Northern Ireland. It mentions specific acts and orders, such as the Prevention of Terrorism (Temporary Provisions) Act 1989 and the Police and Criminal Evidence (Northern Ireland) Order 1989. This suggests that the text is focused on the law enforcement and security sector, rather than any of the other categories.

**Category**
Law Enforcement, Security