Where a lawyer provides, to the best of his or her abilities, a defense against any criminal charges laid against the client.  The criminal defense attorney fights for the legal and civil rights of the accused and is charged with providing a rigorous defense using any legal means to acquit their client of charges.   An attorney will assist you with researching any means to prove an alibi, providing a reasonable defense or in reducing the charges against you.  A criminal defense attorney is the one person that the accused knows is working for his or her best interests in the legal system.

The standard of defense is called “a reasonable doubt” in the United States, as all defendants are considered Innocent until proven Guilty.  Which means that if any “reasonable person” can find cause to doubt the Prosecution's version of events, then they must acquit the defendant of the charges.  A good lawyer will work hard to provide this reasonable doubt to the jury by whatever legal means they can.  Even if you are guilty of the crimes of which you are accused, you are entitled to a private attorney that will provide the best possible defense in your case.