The average person simple cannot understand criminal law in its entirety. The criminal defense attorney you hire must be familiar with federal, state, and local rules of the court, and have the necessary skills needed to defend your case. Making informed decisions and avoiding costly mistakes could be the difference in whether you are convicted and have to serve time in jail. Always choose the criminal defense lawyer with whom you feel most comfortable. It's okay to call a few and ask questions about their experience, prior cases, fees, payment and procedures.