A GRIEVING mother devastated by the brutal murder of her son years ago has said she will not stop fighting to gain access to her son's case file.

Hazel Field, mum of 20-year-old Bournemouth University student Luke Campbell, claims she was promised the file at the end of the court case in 2009, which saw three London men convicted of the murder.

Drug dealers Larib Mohamed, Saeed Alkadir and Delaine Brown were handed life sentences after being found guilty of a pre-meditated knife attack on Luke.

The trio had been in Bournemouth dealing crack and heroin and had previously been caught dealing heroin to an undercover officer.

Hazel said she still has numerous questions about whether more could have been done to arrest the convicted men before the fatal attack.

"I'm never going to get any justice because I've lost my boy and I certainly don't want any money. I just want to get at the truth," she said.

"None of this is going to bring my boy back but I just feel the way they treated my son has been atrocious. He had everything in front of him, he was such a wonderful, kind person.

"I wasn't there to protect him that night but I'm still his mum. Luke said to me 'I'll never leave you mum' and you know what? I''ll never leave him either.

"I just want those involved to speak out and be honest. There are too many unanswered questions."

Accountant Hazel, who also has a daughter and a six-year-old grandson, has previously tried complaining to Dorset Police and to the Ombudsman but to no avail.

However Detective Chief Superintendent Mark Cooper, head of crime and criminal justice, said he would endeavour to help Hazel get the information she wants.

“It is our file and Dorset Police cannot hand over entire case files because they very often contain sensitive information about individuals, police tactics and information that may be subject to Data Protection," he said.

“Supporting victims of crime is a priority for Dorset Police and I am more than happy to do whatever I can to help Hazel deal with the tragic death of her son.

“Hazel and I have spoken at length about this issue before and I will be speaking to her again this week in a bid to try to establish exactly what information she wishes to access from the files. If I can release that information I am more than happy to do so.”

Hazel has also now registered a community interest company called LukaB and hopes to reach out to disaffected young people through music, songwriting and mentoring.

"If I can even help one or two kids it will be worth it," she said. "I know it sounds crazy coming from a mother of a murder victim but the kids that killed him didn't have the life that my son and daughter had, they weren't loved and cared for. I can't take the angry route, I've got to do something. I'm not going to let this beat me."