The police watchdog has pledged to hold a "thorough and rigorous" investigation into officers' contact with a model who was murdered in an alleged domestic killing.
Linah Keza, 29, was stabbed to death at her home in King Edward Road, Leyton, east London, on July 31 while she was with her young daughter.
Her former partner David Gikawa, 38, is accused of her murder and is due to stand trial at the Old Bailey in January.
After Miss Keza's death it emerged that she was in touch with police on three separate occasions in the days before she died.
The Independent Police Complaints Commission (IPCC) said it is looking at police contact with the mother-of-one and her former partner between July 23 and 31, and whether information dating back to 2010 was available to officers.
IPCC Commissioner Jennifer Izekor said: "Our investigation will seek to identify the level of contact and information known to Metropolitan Police officers before Linah's tragic death.
"We have made contact with Ms Keza's family and explained why we are involved and outlined our investigation to them.
"It is right that we are mindful a murder investigation is under way; therefore, at this stage, it is not possible to expand further on the specific details regarding police contact with Ms Keza.
"I would like to assure Ms Keza's family that our investigation will be thorough and rigorous in determining the circumstances surrounding police contact with their loved one before her death."