In previous columns, I've talked about a number of issues related to posttraumatic stress disorder. One aspect of that I have yet to discuss is one that is rather controversial and not commonly talked about-using PTSD as an excuse for unsavory and illegal behavior.

At least once a month, there seems to be a new case in the media depicting a veteran who has been convicted of a serious such as drug trafficking, child , theft, rape, and even murder. In many of these cases, a diagnosis of posttraumatic stress disorder is cited by the veteran's attorney as the cause of the behavior.

So, can PTSD cause criminal behavior? Yes and no. There is no doubt that PTSD can cause a person to make bad choices that lead to antisocial behaviors. Increased use of or drugs can lead to driving while intoxicated, , and petty theft to support their drug or alcohol use. Increased physiological arousal, which causes the service member to always be on-guard, can lead to violent behavior that is out of proportion to a perceived threat. There are even cases in which combat veterans with PTSD have been found not guilty of murder when they were put in a situation, which reminded them of a previous combat experience, and they felt they were defending themselves against an enemy combatant.



It's important to keep in mind that these are extreme cases, particularly the last one. In most cases, PTSD does not lead to criminal behavior. Much of what is seen on this issue in the media is a result of savvy lawyers conjuring up defenses for their clients that would have likely committed the crime regardless if they had PTSD or not. Lawyers know that the average citizen sitting on a jury will have a great deal of sympathy for the veteran, which they hope will result in a favorable outcome for their client.

At this point, some of you may be considering my views as unsympathetic or even cynical. This is not the case. I have a great deal of sympathy for the hundreds of thousands of veterans with PTSD, some of which have found themselves in trouble with the law. My issue is with the numerous bogus claims by individuals who insist that PTSD caused them to download child pornography, sexually assault a female after a night at the bar, or rob a convenience store. In my opinion, it's insulting to those suffering from this disabling condition and feeds the stigma that combat veterans with PTSD are unstable, dangerous, and crazy.

Let's not make PTSD a scapegoat for crime. Instead, let's direct our efforts at better understanding this disorder and improving treatments so that veterans can lead more satisfying and rewarding lives. However, as a student of human behavior I am well aware that people are experts at finding ways to shift responsibility for their actions, particularly those actions that will bring about unwanted consequences.

"An edited version was published in my column 'Kevlar for the Mind" by Military Times.