The law doesn’t require electrical testing to be carried out, however, it does state that you keep your entire electrical system safe at all times, therefore, regular assessment and testing is a must. If a fire or accident happens as a result of an electrical fault then as the person responsible you need to be able to prove that took every step you could have to have avoided the incident, and if not then it can be deemed as an offence. Test results, an EICR report along with maintenance and rectification records from a qualified electrician will provide this.