5 ball-tampering techniques that cricketers often get away with

#1 Scratching the ball with fingernails

Although it might well be caught on cameras, players have used this particular method to extract reverse swing.

It is very normal for players to rub the ball with their hands and then with their trousers and in between, there have been instances when fingernails have poked the surface. This not only disintegrates the ball but also reduces the weight substantially.

It is quite a smart method, but then if caught, it might also lead to sanctions, but perhaps this particular method has been there since the inception of this art of reverse swing.