Crown Prosecution Service
Officers are alleged to have shared crime scene images after Nicole Smallman and Bibaa Henry were stabbed to death in Wembley.
Wales manager will appear in court next week.
The male officer was not charged or suspended over the 2017 allegations.
The ruling has been slammed by campaigners as "another establishment betrayal of victims of violence against women and girls".
Two officers allegedly took "inappropriate" photos after discovering Nicole Smallman and Bibaa Henry's bodies in north-west London.
The Leicester East MP will appear at Westminster Magistrates’ Court on November 11.
Medical tests confirmed the suspect accused of spitting at the 47-year-old while she was on duty had not been infected with coronavirus.
The presenter’s mother and sister have issued statements at the inquest into her death.
The End Violence Against Women coalition says the "legal system is barely functioning with regards to rape" as minister handed dossier of evidence.
It comes as new data reveal that police are six times more likely to fine BAME people than white people under the legislation.