Sorry to re-ignite this discussion but doesn't Article 5(4) have an impact on this argument? The assessor has a contract in relation to the 'safety of premises' and therefore holds some liability if the advice they gave is subsequently considered to be grossly defective. For example, if the assessor signs off a maintenance system for the firefighting lift which is not adequate (seriously not adequate), doesn't the RP have some mitigation in claiming that they took the advice of an 'expert'. I agree that the offence would be under 32 (10).
(4) Where a person has, by virtue of any contract or tenancy, an obligation of any extent in relation to—
(a) the maintenance or repair of any premises, including anything in or on premises; or
(b) the safety of any premises,
that person is to be treated, for the purposes of paragraph (3), as being a person who has control of the premises to the extent that his obligation so extends.