. "the custody of a police officer or an officer or security officer within the meaning of section 2 of the Penal Institutions Act 1954; or (ii) If the person to be surrendered is on bail, authorise any police officer to take the person into custody; and (c) Authorise the police officer, or other officer, as the case may be. to transport the person in custody and, if necessary or convenient, to detai" . . .