The documents are at the centre of a lawsuit filed by Richard Lee, who runs a local TV show, amid claims information from the authorities' findings will prove Cobain did not die from a self-inflicted gunshot wound.

Lee is suing the Seattle Police Department to make the material public as he is convinced the rocker was actually murdered, but investigators argue the papers should stay private for the sake of Love and her only child with the late rocker, Frances Bean Cobain.

Now the mother and daughter, who have never seen the images of the singer's body, have penned letters to the court siding with the police, claiming they have suffered enough.

Cobain, 22, writes, "I have had to cope with many personal issues because of my father's death. Coping with even the possibility that those photographs could be made public is very difficult. Further sensationalizing it through the release of these pictures would cause us indescribable pain."

The youngster also raises fears "obsessed" fans of her father's could cause her further harassment and unwanted attention, especially after one devotee broke into her California home while she was on vacation and waited for her return because he "believed my father's soul had entered my body", reports The Seattle Times.

Superior Court Judge Theresa Doyle will hear the case on Friday (31Jul15), when she will decide if it should head to trial.