Mina Smallman told the BBC she was pleased that Panorama investigated the Metropolitan police.
Mina Smallman criticises the Met Police's apology after PCs shared photos of her murdered daughters.
Mina Smallman says she has forgiven the killer of her daughters, but not the officers who took selfies with their bodies.
Mina Smallman tells BBC Radio 4's Today programme she does not feel "hatred" towards the man who killed Nicole Smallman and Bibaa Henry.
The mum of two murdered sisters says action is needed to signify progress within the Met Police.
Mina Smallman says Sir Mark Rowley missed the chance to recognise institutional racism in the force.
Jamie Lewis received a jail sentence for taking and sharing photos of two murdered sisters.
The Met is investigating more than 600 domestic and sexual abuse claims against its staff, BBC told.
The new commissioner also says he will root out the "racists and misogynists" within the force.
