Air-Raid Precautions Act, 1939

Provisions as to processes involving flames or glare.

50.—(1) Where any process carried on in factory premises, or in the premises of any essential undertaker, involves the emission of flames or glare not capable of being screened by means which would suffice in the case of ordinary lighting of a building, the Minister may serve on the occupier of the factory premises, or on the essential undertaker, as the case may be, a notice in writing requiring him, within the time specified in the notice, to take such measures as may be specified in the notice to secure that in the event of an emergency the flames or glare will either no longer be produced during any period of darkness, or will be wholly or partially screened.

(2) The Minister may serve on the owner of any mine in connection with which there is any accumulation or deposit of refuse which is burning or is liable to spontaneous combustion, a notice in writing requiring him, within the time specified in the notice, to take such measures as may be specified in the notice to secure that in the event of an emergency no flames or glare will be produced during any period of darkness by that accumulation or deposit or that any flames or glare so produced will be wholly or partially screened.