Criminal law defines conduct that is prohibited by law and prescribes penalties for violating those laws. It aims to maintain public order, protect individuals, and deter unlawful behavior. Crimes are typically categorized as felonies or misdemeanors and include offenses such as theft, assault, murder, and fraud. Criminal law outlines procedures for arrest, trial, sentencing, and appeal. Defendants are presumed innocent until proven guilty beyond a reasonable doubt. Legal professionals in this field include prosecutors, defense attorneys, and judges. Criminal law is fundamental to the justice system, ensuring that offenders are held accountable while safeguarding individual rights.