Police were called to Westbourne Drive, Tunstall, in the early hours of Monday 4 February after a man was found collapsed in the street.
The 46-year-old local man was taken to the University Hospital of North Staffordshire where he sadly died. He has been formally identified as William Frost.
An investigation is now underway and officers are pursuing a number of lines of inquiry. At this time the death is being treated as unexplained and a Home Office post-mortem examination carried out on Thursday 7 February did not establish a cause of death. Further tests will now be carried out.
A 42-year-old woman has been arrested in connection with the death and has been bailed, pending further inquiries, to a date next month.