(1) Where a member of the Gárda Síochána alleges to the driver of a mechanically propelled vehicle that such member has cause to suspect that such driver has committed a specified offence under this Act, such member may demand of such driver his name and address and may, if such driver fails or refuses to give his name or address in response to such demand or gives a name or address which is reasonably believed by such member to be false or misleading, arrest such driver without warrant.
(2) Where a member of the Gárda Síochána has reasonable cause for believing that an offence under this Act has been committed and that the vehicle in relation to which such offence was committed does not bear the marks of identification required by law to be borne thereon, such member may arrest without warrant the person whom he has reasonable grounds for believing was driving such vehicle when such offence was so believed to have been committed.
(3) If any person, when his name and address