Under the terms of the Police Act 1996 each police authority in England and Wales is responsible for maintaining an efficient and effective force for policing its police area. Section 96A(4) of the 1996 Act sets out the national and international functions of the Metropolitan police. No other police force has statutory national police responsibilities although individual chief officers lead for the Association of Chief Police Officers on particular policing and criminal justice issues. The allocation of these portfolios is a matter for ACPO.