Third-party accreditation is the strongest evidence a responsible person can ask for: BAFE SP205 registration for assessment organisations, the Institution of Fire Engineers registers for individuals, and FRACS certification. None is legally compulsory, but each involves independent scrutiny of real work rather than self-declaration, and the new British standard for fire risk assessors now gives these schemes a common competence benchmark to certify against.
Leaseholders do not usually commission the block assessment, but they are not spectators either. Responsible persons must share relevant fire safety information with residents, so asking to see the current assessment is reasonable and normal, and flagging defects like damaged doors or blocked routes feeds the next review. When a flat is sold, the buyer's solicitor will often ask for the block FRA too, which do I need a fire risk assessment to sell my flat covers from the seller's side.