THE mother of a man who was allegedly investigating corruption in the Metropolitan Police and later found dead with an axe in his head has died.

Tributes have been made to campaigner Isobel Hulsmann, who died aged 89 last Thursday following a battle with cancer.

Ms Hulsmann was best known for dedicating more than 30 years campaigning to get justice for her late son, private detective Daniel Morgan, who is alleged to have been investigating corruption in the Metropolitan Police.

Son Alastair Morgan, who is also Daniel Morgan’s brother, described his mother as “a fighter”.

“She had been campaigning for justice for her son for more than 30 years,” said Mr Morgan, who lives in Islington.

"She wanted to know the truth with what happened when he was killed."

Daniel Morgan is believed in the 1980s to have been close to exposing police corruption.

He was later found dead with an axe in his head in a London pub car park in 1987.

No-one has ever been convicted of killing Daniel Morgan.

In 2013 prime minister Theresa May, who was then home secretary, announced an independent panel was being set up to look into the facts around the murder of the former Croesyceiliog Grammar School pupil.

Publication of the report has been consistently delayed and this month it was announced it would be put back again.

Brother Alastair Morgan, who grew up in Llanfrechfa, added it was “tragic” his mother would not see the report.

The 68-year-old said: “Obviously the sad thing for me is that she will not see the report of the panel. It is tragic when you think of it.

“The report’s publication has taken a long time because of the amount of documents and the lack of communication from the Metropolitan Police. They have not been helpful.”

A spokesman from the Metropolitan Police said: “The Metropolitan Police Service (MPS) has worked closely with the Home Office and the Daniel Morgan Independent Panel to create a mechanism that allowed for the exceptional and full disclosure to the panel, to enable them to achieve their aim of shining a light on the circumstances of this case.

“It has been an extremely complex process for many reasons including the volume and nature of the material involved, and the fact there was no statutory framework to govern the disclosure process.

“The MPS continues to provide its fullest possible support to the work of the Daniel Morgan Independent Panel, who have had access to over one million pages of information.”