Former drug squad detective Michael Drury has opened up about his NSW colleague Roger Rogerson, who was today convicted of murdering Jamie Gao and who he still believes arranged for Drury's own attempted murder.

Mr Drury was shot twice through the kitchen window of his Sydney home in June 1984, and Rogerson was charged but later acquitted of conspiracy to murder in relation to the attack.

READ MORE: Rogerson and McNamara found guilty of Jamie Gao murder

"The gun I was shot with was a .357 Magnum which is very powerful… and did a lot of damage," he told 60 Minutes. 

"I walked into my wife who was in the next room, in the lounge room, and she was breastfeeding the baby, and I said to her that I thought I'd been shot."

Former policeman Mick Drury speaks to 60 Minutes. (60 Minutes)

"And then I told my wife to take both the girls and go into the bedroom, lock the door and stay there no matter what.

"But I can live with that, because you see my reaction is if I ever saw a lady and children in trouble, even now, as a former police officer, I'd go through a brick wall to protect them." 

Before the shooting Mr Drury had alleged Rogerson had attempted to bribe him into changing his evidence at the trial of a Melbourne heroin trafficker.

Roger Rogerson was today found guilty of Jamie Gao's murder. (AAP)

"He said to me that he'd received word from the Melbourne case there was an opportunity there for me, to receive $15,000 to $25,000 if I altered my evidence," he said of one case.

"I took a position on that straight away, and I said to him 'I can't discuss it, I will have to go to Melbourne and give my evidence as it is'… and I walked out."

Rogerson was later charged with his attempted murder, after convicted drug dealer Alan Williams testified Rogerson and alleged hitman Christopher Flannery had agreed to kill Mr Drury for $50,000 each.

Rogerson and Flannery were acquitted of attempted murder five years later.

In 1981, Rogerson shot dead criminal Warren Lanfranchi in a inner-Sydney laneway.

Rogerson said he was attempting to arrest Lanfranchi on suspicion of involvement in a series of bank robberies, and claimed self-defence at an inquest. He was acquitted of any wrongdoing and later commended again for bravery.

Lanfranchi’s girlfriend, prostitute Sally-Anne Huckstepp, went public with allegations Rogerson had murdered him in cold blood and stolen a cash bribe.

READ MORE: Roger Rogerson: The life and crimes of Australia's most notorious cop

Ms Huckstepp herself was later murdered, and her body was found floating in a pond in Centennial Park. No one has ever been convicted of Ms Huckstepp’s death.

Today, Rogerson, 75, and his co-accused Glen McNamara, 57 – also a former detective – were found guilty of the murder of Jamie Gao in a storage shed south-west of Sydney in 2014.

The court heard the pair had lured Gao to the unit to kill him and steal the 2.78kg of the drug ice that he had been planning to sell.

© ninemsn 2016