Former Crimewatch presenter Jacqui Hames has suggested the News of the World placed her under surveillance because of the paper's links to suspects in the Daniel Morgan murder case.

Mr Morgan, who worked as a private detective in Thornton Heath, was found with an axe embedded in his skull outside a pub in 1987.

Ms Hames, giving evidence at the Leveson Inquiry, rejected as "absolutely pathetic" ex-News of the World editor Rebekah Brooks's claim that the paper was investigating whether she was having an affair with detective chief superintendent Dave Cook, who was actually her husband.

Ms Hames, herself a former Scotland Yard detective, fought back tears as she told the Leveson Inquiry of the damaging effect that being followed by private investigators had on her and her marriage.

The News of the World placed the couple under surveillance after Mr Cook made an appeal on Crimewatch in June 2002 for information about the 1987 Sydenham murder of private investigator Daniel Morgan, the inquiry into press standards heard.

Ms Hames alleged that Mr Morgan's firm Southern Investigations, whose members included suspects in the killing, had "close links" to senior News of the World news editor Alex Marunchak.

She said in a statement to the inquiry: "I believe that the real reason for the News of the World placing us under surveillance was that suspects in the Daniel Morgan murder inquiry were using their association with a powerful and well-resourced newspaper to try to intimidate us and so attempt to subvert the investigation.

These events left me distressed, anxious and needing counselling, and contributed to the breakdown of my marriage to David in 2010. Given the impact of these events, I would like to know why the police did not investigate why we came to be placed under surveillance by a newspaper like this."