Criminal defense attorney, also known as defense attorney or criminal lawyer, attorney specializes in defending people and companies accused of criminal actions. The market for criminal defense lawyers who are kept in private companies, while others are employed by jurisdictions with criminal courts are appointed to represent people who do not have an appointed lawyer, the latter are usually called public defenders. The term is not accurate because each jurisdiction may have different practices law with various input levels either state or federate or by decree. Some jurisdictions that use a rotating system of consultations with judges who appoint a particular office of attorney or firm for each case in particular. It is noteworthy that in the United States, criminal defense lawyers working on issues involving an arrest, a criminal investigation, prosecution, sentencing, appeals and post-trial matters in the case of resources. Although in some cases, the lawyer will specialize in a niche market within criminal defense as a defense drugs and narcotics. The arrest simply means a police officer or judge believes that there is probably a person who committed a particular crime. Since the occurrence of the prison is usually done by law enforcement, prison is often to a criminal charge that has not been charged or verified by a lawyer or judge. Defense lawyers can also work with subjective questions of the crimes with which their clients are accused. The criminal lawyers can also assist clients before a prosecutor makes the charges. This is done when someone who believes that the prosecution is being investigated or arrested. The accused can hire a defense lawyer to assist in representing and dealing with the police or other investigators, conduct their own research, should become necessary.