Criminal law involves a system of legal rules which are designed to keep the public safe and deter wrongful conduct. Those who violate the law may face fines, penalties, and even incarceration. With the exception of minor traffic violations, accused individuals will require the assistance of an attorney. Law enforcement agencies have the prime responsibility of investigating alleged crimes. There are certain procedural rules to ensure police officers respect the constitutional rights of the citizens they investigate. When a defence attorney challenges the legality of a criminal prosecution, most times the dispute is a result of procedural violations by the police. So respecting each other is very essential in these sensitive cases. Seeking advice from experienced litigators can be extremely helpful in understanding all the essential details related to any kind of criminal case.