When the law is being broken the police should take action. If the crime is serious enough, then we also expect them to arrest the guilty person.
However, what if you witness a crime, the police are not around but you are in a position to make the arrest yourself? Then you can carry out a CITIZEN’S ARREST. Different countries have different laws regarding citizen’s arrest so, before becoming a superhero, make sure that you will not be the one to be arrested instead! I suggest you read “How to Make a Citizen’s Arrest” by clicking on the link below.