In view of the possibility of further attacks by hostile aircraft, the Deputy Chief Constable deems it advisable to recommend residents to remain under cover, and advises them to keep a supply of water and sand readily available for dealing with incendiary fires.
The opportunity is taken of suggesting that chemical liquid fire extinguishers should not be purchased without a written guarantee that they comply with the specification of the Board of Trade, Office of Works, or some approved Fire Prevention Committee.
Many dry powder extinguishers are much advertised. The public are warned, as a result of experiments made by a competent committee of experts, that no reliance can be placed upon such appliances for effectively controlling fires such as are likely to be caused by bombs, explosive, or incendiary.
it is advised as the result of experiments made that the provision and prompt and intelligent use of water, or of sand, or both, in dealing with such outbreaks of fire is the best, simplest, and most economical safeguard.