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07/09/2013 07:46 pm ET

Mark O'Mara, George Zimmerman's Attorney, Claims Low Levels' Of Pot Linked To Aggression (VIDEO)

As the trial of George Zimmerman continues, a piece of the defense's strategy was recently revealed when Zimmerman attorney Mark O’Mara told CNN host Piers Morgan that small amounts of marijuana can cause aggression.

On Monday, Judge Debra Nelson reversed her previous decision and ruled she would allow the results of Trayvon Martin's toxicology report to be read in court.

The Smoking Gun suggests her change of mind may have hinged on testimony last Friday by the medical examiner who performed Martin's autopsy and told the jury that the small amount of marijuana found in Martin's system "could have no effect or some effect" on the teenager's behavior.

Speaking with Morgan on Monday, O'Mara argued that the jurors had a right to hear this evidence as “Any level of pot in [Martin's] system could have some effect."

“And of course that falls in line with what Zimmerman stated in his first couple of moments with the non-emergency operator when he said that 'it looks like he’s on drugs or something,'" O'Mara said.

Zimmerman is pleading not guilty to second-degree murder in the fatal shooting of Martin in February 2012. He maintains it was in self-defense.

When Morgan expressed skepticism that marijuana could have affected Martin's behavior, O'Mara pressed on.

“Well, actually, there are some studies out there — particularly with young males — that suggest that even low levels of cannabis use can lead to some aggression," he told Morgan. "So, the question is not how much, but if in fact there has been some effect, and if that effect was noticed by George Zimmerman, then I think it is relevant."

The issue seems to be a polarizing one among researchers and public health officials, some of whom might support O'Mara, and others who might categorically refute him.

However, O'Mara has previously made this argument, suggesting that drug use could have made Martin aggressive or even paranoid, The New York Times reports.

In a recent column for Time, Maia Szalavitz compared the way the media has portrayed Martin and Boston marathon bombing suspect Dzhokhar Tsarnaev when it comes to marijuana use. The piece, titled "From ‘Aggressive’ Trayvon to ‘Laid-Back’ Dzhokhar — Marijuana’s Changing Image," reads in part:

But differences in the way the media have covered their cannabis use portend a major shift in public attitudes about the drug, as well as a troubling reminder of the racism that still largely prevents us from seeing drugs as a health issue.

(h/t Raw Story)

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