Offence of smoking in smoke-free place
(1) In this section, a “smoke-free place” means any of the following—
(a) premises, so far as they are smoke-free under or by virtue of sections 2 and 3 (including premises which by virtue of regulations under section 3(5) are smoke-free except in relation to performers),
(b) a place, so far as it is smoke-free by virtue of section 4,
(c) a vehicle, so far as it is smoke-free by virtue of section 5.