90. Whoever, not being a police-officer or a member of any Defence Force or of the Bangladesh Rifles and acting as such, goes armed with sword, firearm or other offensive weapon or with any explosive or corrosive substance in any street or public place unless so authorised by lawful authority, shall be liable to be disarmed by any police-officer and the weapon or substance so seized shall be forfeited to the Government, unless redeemed within one month on payment of such fine not exceeding one thousand taka as the Police Commissioner may impose.