In this Part of this Schedule—

• “the property, rights and liabilities relating to the transport police force” means the property, rights and liabilities comprised in the part of the Board’s undertaking which constitutes the transport police force (including, in particular, rights and liabilities relating to transport police officers and other persons employed by the Board for the purposes of the transport police force),

• “the transport police force” means the British Transport Police Force, and

• “transport police officers” means the constables appointed under section 53 of the [1949 c. xxix.] British Transport Commission Act 1949.