What does "not guilty" really mean?

Ask anyone in the criminal justice system what a plea of "not guilty" means, and they will probably tell you it means I am putting the government to it's proof. The first thing that happens after charges if filed is that  a defendant is arraigned, and asked to enter a plea. You don't expect anyone to enter a guilty plea at that point. It appears though that some people view a not guilty plea as a denial of guilt, and question the ethics of entering that plea when you are really guilty.

Scott Greenfield at Simple Justice provided his usual keen insight into the ongoing discussion about the "two most loaded words in the courtroom". He was responding in part to a post by a former defense lawyer turned prosecutor who argued that a defendant who actually committed the offense acts immorally by entering a not guilty plea. I can't add to Scott's discussion of the futility in trying to impose absolute moral guidelines onto an issue that is not absolute. I do want to pose some of my own questions though.

If we are to impose absolute morality into a criminal case, shouldn't it apply to both sides. Prosecutors know by now the problems with eyewitness identifications. At best, the far from accurate; at worst, they are no more reliable than chance. Does a prosecutor have a moral obligation to bring that information to a jury; does he violate some type of moral code when he argues that a defendant is guilty, where the only evidence is an eyewitness? What about where there are reasons to question the accuracy of the identification?

One of the legal obligations prosecutors have is to disclose exculpatory evidence. What is exculpatory is often in the eye of the beholder. Most prosecutors think there is nothing exculpatory in their file. In fact, at least under the legal definition, there is probably a lot; basically anything which points to someone else, or impeaches a witness's credibility can be exculpatory. Does a prosecutor lie when he says there is nothing exculpatory in the file?

Our system is an adversarial one. Many prosecutors take that to an extreme, and believe it is not their job to determine guilt or innocence, but it is up to the court or the jury. If they have doubts about a defendant's guilt, whether strong or not, do they act immorally when arguing for a conviction?

As Scott points out, there are few absolutes in the criminal justice. A person may commit an act, that may actually be less serious than what he is charged with. Does he have to admit to committing the act, and leave it up to the judge to decide what the appropriate offense is?

This is not something distinctive about the criminal justice system. The same process exists in the civil system. If you are sued, something like a general denial is entered. Is that immoral, if you actually did what you are being sued for?

Let's also look at the flip side of this. If a juror finds you not guilty, most people recognize that means the state didn't meet its burden of proof. However, under the morality approach, does it actually mean you are innocent.

As I stated before, our justice system is an adversarial one. It requires advocates on both sides. The day the defense lawyer becomes a representative of the prosecutor is the day our freedoms are lost. There are other systems that don't involve criminal defense lawyers - however, those trying to impose morality in this decision would never agree to live under those systems.

Not guilty means nothing more than I am going to make you prove your case. To assign any other meaning would turn the justice system on its head.

How can someone convince themselves they are not guilty?

I recently had a case where there was physical evidence that had not been tested. The police didn't test it because the case against the defendant seemed strong. The evidence could exonerate him, and my client insisted it be tested. We went over the risks, the biggest being that he was going to make the State's case for them if came back as him. Without DNA testing, we could still argue he was not involved, or at least that there was a reasonable doubt of guilt. With the evidence, there would be no doubt. We also went over the reliability of the tests, and how the odds weren't with him. He continued to insist he was innocent, and we sent the evidence off to be tested. It came back today, and sure enough, there is now no doubt whatsoever that he's guilty.

This is not the first time I've had this happen. I can understand rolling the dice with a polygraph. They aren't admissible, and if you fail, its not going to hurt you in court. With DNA tests though, the evidence is admissible. More importantly, its far more reliable than a polygraph. You aren't going to get lucky on a DNA test - they best you could for would that the results were inconclusive.

So why do people insist they are innocent, when there is no doubt they are guilty? I don't have any scientific support, but I think that are some people who can actually convince themselves of something. The more they tell themselves they aren't guilty, the more they believe.

Of course, I also think that are people who just don't believe their lawyer (yes, its really true). If you tell them the tests are accurate, and its going to prove their guilt, they aren't going to believe you. Maybe some just feel like they don't have anything to lose, and want to roll the dice - even the odds against them are astronomical.

I've resigned myself to the fact that this is something I will probably never understand. Maybe I don't want. to.

This situation also highlights something else we have to deal with - some clients seem determined to everything they can to sabotage their case. Unfortunately, they are often the first to blame everything on the lawyer. I guess if being a criminal defense lawyer was easy, everyone would want to do it.

How accurate are polygraphs?

Even if you've never taken one, you probably know polygraphs are not admissible in court. The reason is that they are not considered accurate enough to be used in a court proceeding. That has been always been the law, even though some defendants have recently tried to get in favorable results.

For something that's not recognized as reliable, we place an awful lot of emphasis on them. District Attorneys routinely offer polygraphs, and agree to dismiss charges if the person passes. Generally those are cases where there is no physical evidence, and the case depends on witness testimony. Sexual assault cases are probably the most common. You can safely assume they wouldn't agree to do that if they didn't think they were reliable. The flip side is also true - if you fail, they have no doubt you are guilty.

A recent post contains an article that raises questions about just how accurate polygraphs. Apparently drug cartels are using polygraphs to sniff out undercover operatives. As a result, officers are being trained on how to pass a polygraph. There's no doubt these are highly trained officers, who have undergone a significant amount of training. The fact that they can do it though tells you something. At a minimum, it tells you they are not always accurate.

Even with their limitations, don't expect polygraphs to go away. We all want a quick, easy way to determine if someone is truthful. Even with all the advancement in science, we still can't uncover someone's thoughts. It's good to remember though that they are not always infallible, and not automatically assume someone is lying if they fail a polygraph.