Ministry of Defence says claim is for civilian police to deal with . Yet the deaths have always been paired with conspiracy theories accusing British and French intelligence services and members of British royalty of orchestrating Diana 's death . But police seem to be knocking down claim that they were involved in soldier 's death . It emerged amid collapse of soldier 's marriage . London police stress they are not re - investigating , merely maintaining credibility .
Ministry of Defence says claim is for civilian police to deal with . But police seem to be knocking down claim that they were involved in soldier 's death . It emerged amid collapse of soldier 's marriage . London police stress they are not re - investigating , merely maintaining credibility .