Hello!

[kolla]

https://www.hse.gov.uk/electricity/faq-portable-appliance-testing.htm

The Electricity at Work Regulations 1989 require that any electrical equipment that has the potential to cause injury is maintained in a safe condition. However, the Regulations do not specify what needs to be done, by whom or how frequently (ie they don't make inspection or testing of electrical appliances a legal requirement, nor do they make it a legal requirement to undertake this annually).

Heh, slap a sticker on it