If you dream of being arrested, it may be a symptom of a guilty conscience. The brain may be nursing a regret over an injustice and thinks that punishment is due.
In reality, some mistakes can be excused with apology, remorse and compensation. In dreams world, the rules of reality do not apply and punishment is exaggerated.
How do you handle dreaming of being arrested? You have to confront your fear of wrong doing, or moral issues. The reality may not be as bad as it was depicted in the dream.