The son of Western Australia's Police Commissioner has been sentenced to 16 months' jail over his involvement in a clandestine drug laboratory in Perth.

Russell O'Callaghan, 30, is the son of Commissioner Karl O'Callaghan.

He was one of five people seriously injured when the lab exploded at a house in suburban Carlisle in March.

O'Callaghan pleaded guilty to attempting to manufacture methylamphetamine by assisting three other men to source the necessary chemicals and equipment.

The court heard while O'Callaghan had been addicted to amphetamines for many years, he had never before supplied them to others or been involved in their manufacture.

Since the explosion he has undergone treatment at a rehabilitation clinic.

District Court Judge Felicity Davis said her main consideration in handing down the sentence was to deter others from committing similar offences.

The Commissioner says it is a tough day to see his son going to jail.

"Since the explosion and him suffering burns and going into full-time rehab, he has made changes to himself, his health and his mental state that I haven't seen in the last 10 years," he said.

Mr O'Callaghan says while the penalty is fair, he has some concerns about his son's ongoing treatment.

"I just wanted to see him continue to get well. That was the important thing for me," he said.

O'Callaghan will be eligible for parole in eight months.