Criminal procedure is the backbone of the justice system, governing how crimes are investigated, prosecuted, and punished. It balances law enforcement powers with the rights of the accused, ensuring due process and fairness throughout the legal process. From arrest to appeal, criminal procedure encompasses key stages like booking, arraignment, trial, and sentencing. Constitutional protections, including the right to remain silent and the right to an attorney, safeguard defendants against government overreach and self-incrimination.