14CA. A person must not use, or cause or permit to be used —
(a)
any audio recording equipment installed in or on a bus to record any sound, or absence of sound, within the bus; or
(b)
any visual recording equipment installed in or on a bus to record the presence or absence of any person or item, or the occurrence of any incident, within the bus,
unless a notice is displayed in a conspicuous place inside the bus, stating that audio recording equipment or visual recording equipment (as the case may be) is installed in or on the bus.