Australian homicide detecties are investigating the possiblity that a super potent form of genetically modified marijuana was a factor in four murders there.

Detectives supect psychosis brought on by the powerful marijuana was part of the cause of the deaths.

The hydroponically grown marijuana is said to have a far more powerful effect than naturally grown markijuana and can spark what is known as cannabinoid psychosis, especially in those already prown to mental illness. By some accounts marijuana is up to 10 times more powerful than that freely available a decade ago.

Cannabinoid psychosis however, cannot be used as a legal defence in Australia as the condition is self-inflicted.

According to the article, many people displaying the effects of cannabinoid psychosis are being turned away from medical facilities in Australia due to the sheer numbers seeking help and the facilities being unable to keep up.