A person(Terrorists) wanted to Come into your house(India) for shitting(Bomb Blasts). He shitted as well as farted(Unexploaded Bombs). So from the smell(Ingredients of Unexploaded Bomb) of fart,you come to the conclusion what he might have ate in his food. So you try to ban that food stuff in order to prevent him from shitting in future in your house
Well done our gret aIB & Anti terrorists squad & all investigation bodies.....Best of Luck