Section 17(3) of the Criminal Justice and Courts Act 2015 (c. 2) (“the 2015 Act”) prohibits a constable from giving a simple caution if the offence is an either-way offence specified by order made by the Secretary of State, except in exceptional circumstances relating to the person or the offence. An either-way offence is an offence which, if committed by an adult, is triable either on indictment or summarily.