Voltaire once said, "I do not agree with what you have to say, but I'll defend to the death your right to say it."
As criminal defense attorneys it is our duty to provide the best legal representation for our clients, regardless of whether they committed the crime they are charged. A good criminal defense lawyer will not ask, "Did my client do it?" but instead, "Can the government prove my client did it?" No matter what the defendant has done, he is not legally guilty until a prosecutor provides enough evidence to persuade a judge or jury to convict. The issue ultimately comes down to whether the prosecution can prove, beyond a reasonable doubt, that the defendant committed the crime with which they were charged.
Defense lawyers often do not ask their clients if they committed the crime. Instead, lawyers use the facts to put on the best defense possible and leave the question of guilt to the judge or jury. A defense attorney's tactic involves finding holes in the government's ability to prove all of the elements of a crime. A vigorous defense is necessary to protect the innocent and to ensure that judges and citizens--and not the police--have the ultimate power to decide who is guilty of a crime.