The ABC reports…

A Canberra teenager who stabbed both of his parents after an argument about his cannabis use has been sentenced to jail, but will not spend any more time behind bars.

The ACT Supreme Court heard the boy had suffered psychological and physical abuse from both his parents and had lashed out after feeling scared and trapped by their aggression.

The 16-year-old pleaded guilty in the ACT Supreme Court to inflicting grievous bodily harm, occasioning actual bodily harm, and assault.

The court heard he had a history of mental health problems, had been prescribed medication and was seeing a psychiatrist.

But the relationship between the boy and his parents was strained.

He smoked marijuana, regularly skipped school and reacted badly to discipline from his parents, which sometimes included being hit on the head by his father.

The court heard the incident that led to the stabbing began when the boy was smoking cannabis at home with his girlfriend in November last year.

The boy got into an argument with his mother about drug rehab and breaking house rules.

He had packed a bag to leave home but was blocked by his father.

Fearing physical punishment, the boy stabbed his father five times — four times in the upper left arm and once in the lower back.

His mother then tried to stop him, but he pushed past her and stabbed her in the upper arm too.

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