Air-Raid Precautions Act, 1939

Provisions as to practice of dimming lights by local authorities.

56.—Nothing in any enactment requiring a local authority to cause the whole or any part of its area to be lighted shall render it unlawful for such authority to cause the lights in highways and public places in the whole or any part of its area to be dimmed or extinguished for the purpose of—

(a) training or exercising any persons in respect of air-raid precautions; or

(b) testing devices for enabling movement of traffic to continue in unlighted streets