Section 928(10) in Police Regulations, Bengal , 1943
(10)Boots. - Brown ankle with plain toe-caps for use with putties.Note. - It is to be understood that this is a purely informal working dress and is not to be worn at inspections made by officers superior in rank or when meeting them, unless permission has been previously obtained. When more than one officer is employed on the same duty and informal working dress is worn regulation 028 shall apply.