A police force has told a bereaved Baildon mother, whose daughter was found dead on a London street almost four years ago, that no further investigations into the matter are necessary.

The news is even more difficult for Jean Pearson, 58, to take in the run-up to what would have been her daughter Kelly's 34th birthday on Saturday.

Mrs Pearson, of Dewhirst Close, Baildon, estimates she has spent at least £2,500 investigating the matter herself and seeking legal advice. She said: "For four years I haven't lived a life. It has been on hold until I get some answers. It is as if this report was timed to come out close to her birthday. This is no justice."

In November 1999, Kelly was arrested and kept in police custody for 96 hours on an outstanding warrant which had, in fact, already been dealt with.

She appeared in Horseferry Magistrates Court, London, the error was spotted and Kelly, who had a recent history of drink and mental health problems, was dismissed. She was found dead the following day in a pile of rubbish in Soho.

After years of setbacks, an inquest was held in April, 2002 when a coroner called for an inquiry into Kelly's death. It was backed by Mrs Pearson's MP, Chris Leslie. He wrote to the British Transport, Metropolitan and West Yorkshire Police forces, and the Justice Chief Executive asking them to review the case.

He received responses from all but the Metropolitan Police Force.

Almost a year later, both Mr Leslie and Mrs Pearson finally received a letter containing a report from the force. It reads: "This issue has already been dealt with in investigations carried out by the British Transport Police in response to the complaints and by the MPS in response to the threatened civil action. Both investigations found that a warrant was in existence and therefore the actions of the officers in arresting and detaining Ms Pearson were lawful."

It went on to say that the Greater London Magistrates Court accepted responsibility for the warrant not being withdrawn.

"I therefore conclude that no further investigation or action is required in connection with this issue."

Mrs Pearson, who also has a son, said: "In the report, they admit all the problems but say, after all that time, they are not pursuing it. They admit that if Kelly had been brought home, she would not have died when and where she did. That's the crux: she wouldn't have died. And still they don't think it important enough."

Mrs Pearson is pursuing some or all of the parties involved in the events of November, 1999 and has sent new evidence to Attorney General Lord Goldsmith to consider holding a fresh inquest.