It’s not as if she’s a shrinking violet. Here she is informing the press regarding an ongoing investigation .
http://news.met.police.uk/news/murder-investigation-launched-in-kilburn-244404“DCI Nicola Wall said: "We know that the victim lived alone and her family who live in Italy last heard from her on 21 May. Officers attended her home address on 29 May following concerns raised by a neighbour and the decision was taken to force entry into the property.
"We have established that victim was in the Kilburn area on 22 May but we further need to understand her movements from this date onwards.
"Whilst enquiries are ongoing to establish the motive for the attack, it is considered likely that the motive is linked to the victim being a sex worker.
"I would urge sex workers in the London area to be extra vigilant at this time, we are working hard to identify the attacker but we urgently require their assistance. If you have any concerns about a recent client's behaviour, especially where threats or violence have been used do come and speak with us."
Surely it’s the DCI’s job to keep the public up to date with information regarding a case ? So why is she so quiet with regard to probably the biggest case of her working life ?