He requested access to her accident files several years after her passing in 1997. In a written account of his experience, he describes the moment he first opened the file and saw photos of the crash scene.
The exterior shots showed the tunnel where the accident occurred, while interior photos revealed the wreckage of the car.
Harry also discovered that many of the photos were taken by paparazzi and other onlookers who had gathered at the scene.
He was struck by the chaotic and disrespectful atmosphere depicted in the images, which showed people milling around and taking photos just moments after the accident.
Princess Diana's death remains a painful and emotional subject for Harry and many others, and his efforts to uncover the truth are a testament to his love for his mother and his commitment to honoring her memory.