In this Part -

"activate", in relation to an explosive or other lethal device, includes discharge and detonate;

"authorisation" means an authorisation given under section 22;

"cessation" means the cessation by an undertaking, in compliance with a direction, of the provision of a mobile communications service within a particular geographical area;

"cessation period" means the period, referred to in section 24(3)(c), during which an undertaking is directed, under a direction, to cease providing a mobile communications service;

"direction" means a direction issued under section 24;

"electronic communications service" has the same meaning as it has in section 2 of the Communications Regulation Act 2002;