The incident occurred in the early hours of Saturday, 15 June during an aggravated burglary at an address in Routh Road, SW18.
A woman in her 20s continues to be supported by specially trained officers.
Detectives are asking anyone who may have seen a person acting suspiciously in the area of Wandsworth Common and Routh Road between 5am and 8am that morning to get in contact.
There has been no arrest and enquiries into the circumstances continue.
Anyone with information that could assist police is asked to call 101 or ‘X’ @MetCC and quote CAD1856/15Jun. You can also provide information to the independent charity Crimestoppers anonymously on 0800 555 111.
