When did the P.S.I.S.A come into effect?

The correct response is 2005 because that is when the Private Security Industry Act (P.S.I.S.A) came into effect in the United Kingdom. This legislation was significant in regulating the private security industry, establishing a framework for licensing and ensuring that security personnel meet specific standards, thus improving professionalism and accountability within the sector. The Act was introduced to address concerns about safety and quality within private security services, aiming to enhance public confidence in the industry.

The other dates do not correspond to the implementation of the Act. The early 2000s saw discussions and preliminary proposals regarding the regulation of private security, but it was only in 2005 that the P.S.I.S.A officially came into force, marking the start of regulated practices in the industry.