If any ceo or coo or director or insider of a company trade fno of his company in his name or his family or relative or friend name ;;; how the regulator will come to know?

If any ceo or coo or director or insider of a company trade fno of his company in his name or his family or relative or friend name ;;; how the regulator will come to know ?

I think they have to inform that, every company will have trading policy and one has to comply to that if not that can be considered as offence.Most won’t allow their employees to trade in fno of their own stock.

If the insider violates the policy secretly and trades fno in his name or relative name , secretly . Who and how will come to know ?

Then auditors and third part auditors need to find, at some point of time this will come out.