Former Benalla police officer First Constable D'Arne De Leo had only moved to Melbourne three months ago, before she was killed in a motorcycle crash.
The truck driver accused of causing her death after running a red light has been assessed as suicidal, a court has heard.
Police allege Ferntree Gully man Samandeep Singh, 26, drove through a red light at Boronia Road, Wantirna and crashed into the back of the woman's motorcycle on Thursday morning, trapping her underneath his truck.
First Constable De Leo died at the scene.
Singh has been charged with culpable driving causing death and dangerous driving.
He appeared in the Melbourne Magistrates Court on Friday.
Defence lawyer Chen Yang said a forensic medical officer diagnosed his client as having "suicidal ideation" after he was arrested.
It was Singh's first time in custody.
Fairfax Media understands police have not yet interviewed Singh, who will be re-assessed by a psychiatrist or psychiatric nurse to determine whether he requires medication.
He did not apply for bail. Magistrate Andrew McKenna remanded him to appear in court on May 4.
First Constable De Leo worked at Benalla for two-and-a-half years before a transfer to Fitzroy three months ago. She was aged in her 40s and lived in the eastern suburbs.
Benalla Acting Inspector Ash Mason said First Constable De Leo was a well-respected and valued general-duties member who was only at the beginning of her career. "She had a huge career ahead of her and it's a huge loss," he said.
"She just wanted to get in, do her job and do it really well."
Police Association assistant secretary Bruce McKenzie said the union was thinking of her family and the officers who had to attend the crash.
"One of our members has tragically lost her life simply by travelling to work,” he said.
“We have the greatest sympathy for her family at this time.
"We also feel for her police family and for her colleagues who attended (Thursday) morning's tragic scene. She had only been in the force for a relatively short time."