(a) unless the
occupier represents the Crown, may recover an amount equal to the cost of
doing so as a debt owed by the person to the Crown or to the
local government authority, as the case may be, or
(3)
An employee assigned, or a contractor engaged, by the Secretary or a
local government authority to do any work on regulated premises under this
section may, at any reasonable time, enter the premises and do the work or
have it done.