because they haven't named anyone else ...
They're not obliged to name anybody else or to disclose details of an investigation.
they had very strong words to say about trial by social media.
Deputy Police Commissioner Wendy Steendam told
ABC Radio Melbourne: "Working on an investigation through the media is unhelpful to our investigation.
"The matter needs to be dealt with by us, looked at (by) us, and determined by us thoroughly what's actually occurred, and using the evidence that we have to determine and understand exactly what's happened and if we can explain what caused the deaths."
When asked about its contents, the Deputy Commissioner added she thought it would be inappropriate to "speculate" on what remained an active investigation.
"I don’t think it’s helpful to actually comment further on this investigation," she said.
"It is an active matter and when we have more to say publicly, we'll do that. But I think to speculate or to talk about the aspects of the investigation in detail is unhelpful."
Detectives probing the death of three people following a poisonous mushroom lunch say the leaking of chef Erin Patterson's police statement has been "unhelpful" and hampered investigators.
www.lbc.co.uk
Media coverage of a statement given to police by the woman who cooked a mushroom meal that is believed to have killed three people in regional Victoria was "unhelpful", the state's Deputy Police Commissioner Wendy Steendam has claimed.
www.skynews.com.au
Deputy Commissioner Steendam warned on Thursday that the inquiry into the deaths of Ms Patterson's relatives would be lengthy and added that police had been "very clear" in informing the public they were yet to determine the cause.
"We're keeping an open mind about what has actually occurred," she said.
"This needs to be investigated thoroughly. We're working with the health department, and we will take as much time as needed to understand what's occurred and whether or not there are matters that we need to further investigate."