Former Metropolitan Police Commissioner Lord Paul Condon, testifying at an inquest into Diana's 1997 death in a Paris car crash, said the relationship deteriorated to the point that Diana eventually suspected police were bugging her calls and had placed a tracking device in her car, the Daily Mail reported Thursday.

Condon, however, denied that his decision to keep quiet about a letter in which Diana predicted she would be murdered in a staged car crash was part of a wider coverup, the newspaper said.

Condon was given the memo just 18 days after she died by her divorce lawyer but decided it was "not immediately relevant" and did nothing about it for almost six years. He said Diana's lawyer wanted the note's existence kept secret, for the sake of Diana's sons and to protect the princess from critics who suggested she was "unbalanced at the time."

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