Discharge of firearms in port

If any person, without lawful excuse, discharges any firearm in any port subject to this Act or on or from any pier, landing place, warp or quay thereof, except a gun loaded only with gunpowder for the purpose of making a signal of distress, or for such other purposes as may be allowed by the Government, he shall for every such offence be punishable with fine which may extend to fifty rupees.