Byline: ANDREW DRUMMOND
HE ran with the notorious Glasgow gang The Tongs, who gained infamy for their razor slashings in the city's old tenement-lined streets.
As a child, he was in and out of approved school and Borstal, before he graduated to the infamous Bar-L, Glasgow's Barlinnie Prison.
His father was a convicted armed robber and lorry hijacker. His brother spent two decades in prison after being convicted of the 'Ice Cream War' murders before being cleared.
As he came of age, Lauchlan 'Lochie' Campbell, a member of one of Scotland's prime crime families, became an equally notorious drugs trafficker, eventually spending 12 years in a Chinese prison.
But when The Scottish Mail on Sunday caught up with Campbell, now aged 56, he was dressed in the saffron cloth of a trainee Buddhist monk teaching children in a temple in Cambodia's former killing fields the 'art of polite English conversation'.
Here, in the port town of Sihanoukville, the new softer tones of Lochie Campbell are a stark contrast to those days when he might have gruffly offered to give someone a 'Glesga kiss'.
Cambodian children from five to 15 are flocking to his free classes at Wat Leu, a Buddhist temple just outside this city.
He calls it the '50p School of English Conversation', looking to the time when he hopes it will become self-supporting. At the moment, it has the backing of some of Scotland's most notorious gangland figures.
The fact is that these children neither have the Khmer equivalent of 50p, nor mothers and fathers.
They are all orphans.
Campbell said: 'There have been lots of people chipping in, including my brother Tommy.
'Paul Ferris has also been very supportive,' he adds, referring to the notorious former gunrunner.
'I'm a changed man but I changed myself. Now I would not even step on an ant. All I want to do is really help people less well off than myself.
Can you believe that?
'The Cambodian "wee yins" are so receptive. They just want to learn.
They are in the classroom long before I arrive. They don't want to waste a minute.
'I cannot describe how gratifying and rewarding that can be. I feel like I am doing something really worthwhile.
'A year ago I was sitting in my tenement in Glasgow, getting addicted to heroin. All my family saw what was happening to me.
'They knew I had studied both the Hindu and Buddhist faiths and thought it would do me good to return to Asia.
'I tried China for a while because I learned Mandarin during my time in prison. But it never worked. Instead I found happiness here in Cambodia.
'The people are beautiful but everywhere you can feel a sort of sadness and that must be a legacy from the Khmer Rouge and the killing fields.' On arriving in Cambodia, Campbell went on a weeklong meditation course at a Buddhist temple in Battambang, in the northwest of the country.
He said: 'Local friends have helped me with accommodation and, to be honest, I can live on a pound a day; and that's a lot more than some of the local people earn in a week.
'It's a far cry from the time when I was sitting in the back of a Ford Cortina in Uddingston with a sawnoff shotgun waiting to do the local post office. I remember that well.
'I did not want to get involved and I managed to talk my pals out of it.'
Brought up in the tough Glasgow districts of Calton and Dennistoun, by 15 Lochie Campbell had been sent to approved school in Paisley for robbing the till of a local off-licence.
He ran with The Tongs, while his younger brother, Tommy 'TC' Campbell-was with The Gouchos. He insists now, some four decades on: 'I wasn't one of those guys who carried a razor.' With a history of robbery, cheque fraud, car theft and police assault, he eventually ended up in Barlinnie.
After serving three years, Campbell lived a crime-free life for ten years.
But after a divorce, he went into the smuggling business, starting with electrical goods from Hong Kong, then hashish from Nepal to Japan and occasionally to Australia.
He recalled: 'I would buy a kilo for US$50 and be able to sell it in Japan for US$5,000. I was good. I was even able to buy myself a bar called Jock's Rock in Borocay in the Philippines.' He was held by Australian police in 1989 after riding shotgun for two other Britons who were smuggling hashish into Australia.
But the court in Fremantle ruled there was no case to answer as he was not carrying the drug himself.
Two years later, his drug-smuggling days finally came to an end on a train from Xing Jang to Shanghai when he decided to smoke some of his own 'stash'.
Officers of China's Public Security Bureau pounced as he stepped off the train at Shizou with his 18-yearold son.
His son was acquitted but Campbell was sentenced to 15 years - 12 of which he served, mostly at Shanghai Central Prison.
He had been travelling with 20 kilos, which would have brought him a return of US$100,000 in Tokyo, to where he had booked his passage.
He admitted: 'I have had a wasted life. I taught myself that. And I now accept that as a fact.
'Of course, in prison in China we had to publicly confess and atone for our crimes every month. At the time I just wrote down what they wanted to hear.
It was the only way you could get a reduction of sentence, but I did come to mean it.
'Now my life is very simple. My needs are little. Those of other people are much greater. I pray for the kids here in Cambodia who deserve so much more.
'I pray every day for justice for my brother Tommy, who has still not been compensated for the 20 years he spent in jail for a crime he did not commit, a sentence which broke him.' TC Campbell was acquitted three years ago of the murder of the Doyle family in Glasgow's East End in 1984 in the infamous dispute known as the Ice Cream Wars. Now he is seeking compensation from the Home Office for his lost years.
In Cambodia, his brother rises at 5am and goes to bed at dusk. His heroes now are the Dalai Lama and Burmese democracy fighter Aung San Suu Kyi.
His spare time is devoted to painting, an art he picked up while serving time in China.
As I left the Wat Leu temple, I spoke to one of the monks, Piseth Ech, who is learning English.
He said: 'Lochie really is a good man. He has told us everything about his life. But he would still make a very good monk. He's kind to everybody he meets.
'Tomorrow he is buying all the kids toothbrushes and toothpaste and is also going to teach them dental hygiene.'