A man accused of murdering Adelaide mother Louise Hughes has had the charge against him dropped.
Ms Hughes died at a house on Condada Avenue at Park Holme in September last year, despite efforts to resuscitate her by emergency services.
Lee Paul Streng, 34, was arrested shortly after and charged with her murder.
Last week, Mr Streng's lawyer Stacey Carter asked for his charges to be dismissed because of an inconclusive post-mortem report.
The prosecution today said an addendum pathologist report had been received and sent to the Director of Public Prosecutions, who maintains that no charge determination could be made.
"My application is not to proceed with the charge," the prosecutor said.
Mr Streng's lawyer Stacey Carter said her client still had a breach of bail matter that "will be resolved shortly".
Magistrate John Wells said once that bail matter is dealt with, he will be released from custody in Port Augusta prison.
"The charge of murder has been discontinued, thank you," Mr Wells said.
Mr Streng thanked the magistrate and his lawyer.
Outside of court today, Detective Inspector Mark McEachern said Ms Hughes' death was still being investigated, and would not rule out any re-arrests.
"We understand the reasons why the matter has been withdrawn, so Ms Hughes' death remains an unsolved homicide death investigation and it will be," he said.
"The case will be subject to a full review and further investigation and that could take several months."
Ms Hughes' sister Mardi Webber said the family has been devastated since her death.
"We just have faith in the police that they will do the right thing by us and for my sister, she's the one suffering," Ms Webber said outside of court.
