A woman charged with starting the strawberry needle contamination crisis reportedly worked as a farm supervisor and was unhappy with the way she was being treated.

My Ut Trinh, known as Judy, was arrested on Sunday after a two-month police investigation linked her DNA to the first discovered needle, which police allege was found in a punnet from Queensland's Berrylicious/Berry Obsession farm.

The 50-year-old operates the Caboolture labour hire company, which provided staff to the farm, according to The Courier Mail.

She is accused of inserting a needle into a strawberry because she was unhappy with the company - triggering the contamination crisis and setting off a string of copycat incidents across Australia.

My Ut Trinh (pictured), known as Judy, was arrested and charged on Sunday after a months-long police investigation linked her DNA to the first discovered needle

Pictured is a needle found in a punnet in Gladstone, Queensland

Trinh allegedly told others she 'wanted to bring them down' and 'put them out of business, 7 News reported.

The day prior to a needle being found in a punnet of strawberries in a Woolworths in Geelong, Trinh allegedly told the pickers at the farm their services would no longer be needed.

The 50-year-old has been charged with seven counts contamination of goods, which has a three-year maximum penalty.

In addition, a circumstance of aggravation will be alleged, elevating the maximum to 10 years in prison.

She is due to appear in the Brisbane Magistrates Court on Monday.

Detective Superintendent Jon Wacker from the Drug and Serious Crime Group said investigators were always determined to solve the case.

Needles were then found in packets of strawberries nation-wide and the contamination was dubbed 'food terrorism'

'This is a major and unprecedented police investigation with a lot of complexities involved,' Superintendent Wacker said.

'The Queensland Police Service has allocated a significant amount of resources to ensure those responsible are brought to justice.

'While the investigation is far from over, I would like to acknowledge the tireless effort of our investigators as well as members from all other agencies across Australia who played a role.

'I would also like to thank those within the strawberry industry for their cooperation and members of the public who assisted us with our inquiries.'

The company is one of many, such as Donnybrook Berries (pictured), that have been forced to scrap many thousands of dollars in stock as frightened customers refuse to buy

More than 100 reports of tampered fruit are being investigated by police across Australia, many of which are thought to be fake or copycat cases

Needles were then found in packets of strawberries nation-wide and the contamination was dubbed 'food terrorism'

More than 100 reports of tampered fruit are being investigated by police across Australia, many of which are thought to be fake or copycat cases.

Queensland Health officials issued a safety warning on September 12 after the discovery of needles hidden inside a punnet of strawberries.

Needles were then found in packets of strawberries nation-wide and the contamination was dubbed 'food terrorism'.

Brands effected included Donnybrook Berries, Love Berry, Delightful Strawberries, Berry Obsession and Berry Licious.

Farmers across Australia were forced to lay off staff as a result of plummeting sales, with people terrified to purchase fruit.

Needles were then found in packets of strawberries nation-wide and the contamination was dubbed 'food terrorism'

Suncoast Harvest, a small farm on the Sunshine Coast, laid off about 100 workers weeks ahead of schedule, blaming a customer 'frenzy'.

'We have decided it is best to pull out of growing strawberries for the rest of this year... and begin spraying out healthy paddocks of luscious, juicy berries,' it said.

Stephanie Chheang, whose mother and step-father run Donnybrook Berries, shared a heartbreaking video of harvested fruit being dumped from a loader.

'This is no doubt the worst thing to ever happen to my family. This is worth more than you could ever imagine and within three days we lost it all,' she said.

The small family business north of Brisbane was forced to dump millions of strawberries in a ditch after its brand was recalled.

'We have to throw them out because the markets wouldn't take our strawberries due to the needle scare,' she said.

Stephanie Chheang, whose mother and stepfather run Donnybrook Berries, shared a heartbreaking video of harvested fruit being dumped from a loader

Ms Chheang said her mother Leena Lee Cufari and stepfather spent years and 'all their money' building the farm, only for it to be wiped out.

'They put all their money and effort in to building such a successful business. They work hard to make the money for our family and to have these selfish individuals destroy it is just so upsetting.

'My mum works day through to night, controlling the shed and her 250 employees, making sure her strawberries are packed to perfection.'

A state-wide campaign was launched by the Queensland government to encourage consumers to back farmers by buying their produce.

The state government has previously revealed more than half the $1 million it put forward in response to the saga will be spent on an advertising campaign, with $250,000 allocated for safeguarding supply chain integrity.

Funds will also be given to the Queensland Strawberry Growers Association and Growcom to distribute to affected farmers.

The federal government also rushed through laws to see those responsible face up to 15 years behind bars.