A country without rules to follow will be peril, just imagine how dangerous our communities would be. We would see crime in every corner, criminals will be everywhere, and people will not have peace. Many people ask what the purpose of law is and why laws are created. Criminal laws "deal with the crime committed against the public by the public and this laws focus on the general public and how they respond or take charges for the offenses they have made" (Criminal Lawyer Group , 2013).
The reason criminal law are created is to give society some discipline and to protect the people from criminals. Criminal laws or penal law, which is another way to call it, also determines what a criminal act is or not. "Making the criminal law prevail will help the country become peaceful. It will lessen the acts of violence and other crimes because criminals are aware that they will be punished" (Criminal Lawyer Group, 2013).
To explain how criminal law works, here is one recent Supreme Court case that is calling the attention of many people. In 2009, the police of Maryland arrest Alonzo Jay King, for first- and second-degree assault. During the arrest, Maryland police were authorized to collect King’s DNA. When the results comeback, surprise King's DNA "matched a prior set of DNA data collected in a separate 2003 rape case that remained unsolved" (Cowen & Park, 2007).
After the police, present the evidences in court of Jay King DNA and the 2003 DNA sample from the rape victim who underwent a sexual assault forensic exam, the grand jury formally charge King for first-degree rape. Later, "the state’s highest court reversed King’s conviction, finding that the DNA evidence was improperly obtained during an unreasonable search. The court deemed the search unreasonable and thus unconstitutional under the Fourth Amendment because King’s right to the expectation of privacy was greater than Maryland’s interest in using his DNA to identify him" (Cowen &