A murder accused claims her partner grabbed her by the throat before she fatally stabbed him at a Port Fairy caravan park in 2019.
Jessica Wilson, 37, is standing trial in the Warrnambool Supreme Court over the alleged murder of Marcus Adams at Port Fairy's Catalina Caravan Park in the early hours of September 20, 2019.
Jurors heard from a number of medical experts on Tuesday and Wednesday, including forensic nurse Kate Sloan who told the court she spoke to the accused woman at the Warrnambool police station about eight hours after the fatal incident.
Ms Sloan said the accused told her she'd been in the caravan with Mr Adams, that he was screaming, he threatened her with a hammer, grabbed her around the throat and pushed her into bunk beds.
The nurse said Ms Wilson told her that she stabbed her partner with a knife during the altercation and that he'd been taking steroids, which were making him angry.
Ms Sloan said she observed bruising to the neck of the accused woman, who also reported pain to the throat, although CT scans showed nothing unusual.
Forensic Pathologist Matthew Lynch said a post-mortem examination of Mr Adams showed a stab wound to his back and that the man had died as a result of internal blood loss.
Dr Dimitri Gerostamoulos, chief toxicologist at Victorian Institute of Forensic Medicine, said a post-mortem examination of Mr Adams' body uncovered quantities of drugs, including MDMA and anabolic steroids.
Lawyers for Ms Wilson said she acted in self-defence, while the prosecution alleged she either intended to seriously injure or kill, or "unnecessarily" defended herself.
The trial continues.
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