For the purpose of enabling the Secretary of State to determine whether to give an instruction to any person, or of ascertaining whether any instruction or enforcement notice is being or has been complied with, a person authorised for the purpose by the Secretary of State in writing (in this section referred to as "an authorised person") shall have power, on production (if required) of his credentials, to inspect any relevant asset.
An authorised person inspecting a relevant asset under subsection (1) above shall have power—
but nothing in paragraph (a) above shall entitle an authorised person to subject any rolling stock, or any part of any rolling stock, to any test.
An authorised person, for the purpose of exercising any power conferred on him by subsection (1) or (2) above in relation to any relevant asset, shall have power—
but nothing in this subsection authorises any use of force.
A person is guilty of an offence if he—
A person guilty of an offence under subsection (4) above shall be liable—
No proceedings shall be instituted in England and Wales in respect of an offence under subsection (4) above except by or with the consent of the Secretary of State or the Director of Public Prosecutions.
Expressions used in this section and in section 119 or 120 above have the same meaning in this section as they have in that section.