Police have remained tight-lipped about the discovery of the body of a 27-year-old man in the Hall Street unit on Saturday, while keeping a significant presence at the scene for a third day.

Authorities are canvassing local businesses and homes for CCTV footage, and are reviewing it for any ''relevant content''.

Police are expecting to release more information after the results of a post-mortem, which is expected to be conducted on Tuesday.

Friends found the man dead on the floor of the unit on Saturday, prompting a response from detectives, forensics, tactical police, and general duties officers.

Police said on Monday the man had sustained ''a number of injuries'', which required them to investigate the matter as a suspicious death.

They cannot yet disclose the nature of the injuries, whether a weapon is thought to be involved, or if there were signs of a struggle or forced entry at the home.

The scene was still a hive of police activity on Monday, with forensics officers and criminal investigations detectives continuing to work at the cordoned-off unit and its surrounds, while the forward command post was still on site.

Neighbours said they had been given no idea as to what happened in the unit, located next to the shops. On Monday, one neighbour said residents were ''shocked'' and surprised something like this could happen in the quiet area.

Superintendent Brett Kidner said officers were still processing the scene, and further details would be released following the results of Tuesday's post-mortem.

''Hopefully, at that point in time, we'll be in a position to formally release the identification of the deceased, as well as a clear indication in regards to where the investigation is going,'' he said. ''The public can expect to see police come and go

from that area for the next short period of time.''

He said it would be speculative for police to release information on injuries before receiving an expert report from a pathologist.

''What we see, as lay people, sometimes tends to be a little bit different to what the pathologist will see due to their expertise in that area,'' he said.

Superintendent Kidner said police typically tried to build up a ''clear understanding'' of the victim and how they lived, including what their movements were before the death.

He said that would help police assess the state of the unit in which he was found, and also help pinpoint a time of death.

''Once we get a clear picture of that, then we're able to actually go back and look at the habitat that we found the victim [in] and try and determine what's normal,'' he said.

''We've spoken to a number of the neighbours, and a number of friends and relatives, and we're trying to piece the movements of the victim together, so that we can have a clear indication of what the time of death may have been.''

He said neighbours who knew the man had been surprised to hear of his passing.