1. loophole
A loophole in the law allowed him to escape prosecution.
There are many loopholes in our inner regulations.
take advantage of a loophole
It is a loophole which Parliament, with the assistance of the Commission, is seeking to close.
The government is planning to use a loophole allowing to purchase without a tender in emergency situation.
In the 18 states that have closed the background check loophole, there've been half as many instances of gun violence
We took advantage of a loophole in the tax law, in order to save money.