When you have a brush with something, such as the law, you encounter or experience it briefly.
"He had a brush with the law for speeding a few years ago, but he has had a clean record ever since."
burden of proof
The burden of proof is the necessity imposed by the law to prove that what one says is true.
"The burden of proof lies with the claimant."
case in point
The term case in point refers to an example which serves to illustrate, support or prove a point which is currently under discussion.
"Not even the most talented athlete is guaranteed a long career. The latest skiing accident is a case in point."
If a person is caught red-handed, they are caught while they are doing something wrong or illegal.
"The police arrived as the burglar was leaving the house. He was caught red-handed."
caveat emptor
This Latin expression, which means 'let the buyer beware', is a warning to customers that goods are for sale 'as is'. The buyer is purchasing the articles at his/her own risk and is responsible for examining them beforehand.
"Caveat emptor is a principle to be remembered when buying second-hand goods."
crack down on
If the authoritiescrack down on something, they enforce the law by taking severe measures to restrict undesirable or criminal actions.
"To reduce road accidents, it was decided to crack down on speeding."
cut some slack
If you relax a rule, treat a person less severely or allow someone to do something which is normally not permitted, you cut them some slack.
"Our parents are very strict; I wish they'd cut us some slack now and then."
