She is accused of inserting needles in strawberries while working as a fruit picker in Queensland in September.
A 50-year-old woman will face court on Monday after police charged her with contaminating strawberries with needles, an episode that spurred one of Australia's biggest food scares.
A farm supervisor who allegedly put needles in strawberries did so out of spite, a Brisbane court has heard.
However, Ms Roney said a bail application would not be considered until more information about the case was known.
Police said the woman was a former supervisor at a berry farm of one of the brands affected, but did not say which one.
Wacker said police received 186 complaints of fruit contamination, 15 of which proved to be hoaxes.
The crisis spread not only to other fruit but also over to New Zealand and Singapore. Her lawyer argued that Trinh - who required a Vietnamese interpreter in court - had strong family ties to Brisbane and had complied with all police requirements thus far.
He suffered severe abdominal pain and was treated at Sunshine Coast University Hospital.
Australian police said on Monday they had charged a 50-year woman with seven cases of contamination, the first charges laid in the case.
Strawberries contaminated with needles were found across the country in September, sparking nationwide panic that resulted in tonnes of fruit being destroyed.
The contamination scandal saw countless amounts of fruit be dumped strawberries recalled and supermarkets pulling stock from their shelves.
The incidents led to a deep panic in Australian society, and laws are now being rushed through parliament to increase the possible punishments for food contamination.
Almost 200 punnets of strawberries were reported to have sewing needles inside in a terrifying contamination spate which took hold in Australia in September.
The first report of contamination was made in Queensland on September 12 when Queensland man Hoani Hearne swallowed half a needle biting into a contaminated strawberry purchased from a Woolworths store north of Brisbane.
Queensland Police said it had conducted a "complex" national investigation "with multiple government, law enforcement and intelligence agencies" in order to zone in on Trinh.
The Queensland Strawberry Growers Association have also congratulated Queensland Police for their efforts.