Today's world is embraced largely by crimes, terrorism, wars and tribal wars. The developed countries are researching and developing new weapons and in order to maintain the funds required for this purpose they are creating wars and selling weapons they created. The main supply of weapons is going to developing countries which they are acquiring saying that they require it for the internal security as well as security from the neighbour countries.

Jiao Yu in the mid 14th century write a book titled Huolongjing ("Fire Drake Manual"), this manuscript recorded an earlier Song-era cast iron cannon known as the "flying-cloud thunderclap eruptor" (fei yun pi-li pao). The manuscript stated that (Needham's modified Wade-Giles spelling):

The shells (phao) are made of cast iron, as large as a bowl and shaped like a ball. Inside they contain half a pound of 'divine fire' (shén huo, gunpowder). They are sent flying towards the enemy camp from an eruptor (mu phao); and when they get there a sound like a thunder-clap is heard, and flashes of light appear. If ten of these shells are fired successfully into the enemy camp, the whole place will be set ablaze.

From the above statements and the history we can ascertain that the weapons were used widely in crimes that took place in the world from its beginning whether the crime is small or large. I am always thinking that how the security personnel rank a crime as small or large. I am with the opinion that every crime should be punishable with an effect that the person who committed the crime should not be able to do it again.

In a letter to his sister, Colonel Hugh Robert Hibbert, described an improvised grenade employed during the Crimea War (1854-1856):

We have a new invention to annoy our friends in their pits. It consists in filling empty soda water bottles full of powder, old twisted nails and any other sharp or cutting thing we can find at the time, sticking a bit of tow in for a fuse then lighting it and throwing it quickly into our neighbours pit where it bursts, to their great annoyance. You may imagine their rage at seeing a soda water bottle come tumbling into a hole full of men with a little fuse burning away as proud as a real shell exploding and burying itself into soft parts of the flesh.

From the above words of Colonel Hugh Robert Hibbert it is clear that he is enjoying killing his war enemies with most pain they can have and slow killing. The war zone is the place where most of the crimes occur. In a war zone there may not be sufficient authorities to check that social security or law and order is prevailing in the state. People who are in rage do everything possible by them like looting the shops, monuments and old cultural items. There is no body to control these elements.

Weapons play an important role in supporting these elements. Manufacturing weapons and use of the weapons should not be promoted by any country.