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Young boy arrested after admitting he put needles in Australian strawberries

A young boy has been arrested in Australia after police say he admitted to putting needles in strawberries.

NSW Acting Assistant Commissioner Stuart Smith said detectives had arrested one young boy over an incident that "could be a prank", 7 NEWS reports.

"Obviously in the last few days we found a young person has admitted to a prank, including putting needles in strawberries, and he’ll be dealt with under the youth cautioning system," the acting assistant commissioner said.

Earlier today, Prime Minister Scott Morrison said the "idiot" who first sabotaged Queensland strawberries, setting off a distressing series of events, had risked the livelihoods of farmers and put fear in the hearts of parents across the country.

"This is a shocking and cowardly thing for this individual and others who have jumped onto the bandwagon here to have engaged in," Mr Morrison told reporters in Canberra today.

Anyone found guilty of contaminating food could soon face a maximum of 15 years in prison, up from 10 years.

The threshold for the harsh penalties will also be lowered from an intention to cause anxiety or harm, to simply engaging in a reckless act.

The new criminal penalties are on par with child pornography and terror financing offences.

Additionally, anyone who piggy-backs off such a crisis by engaging in a reckless hoax would also face 10 years behind bars.

The offence would extend to people who provide false reports or make jokes in poor taste on Facebook.

"It's not a joke, it's not funny, you are putting the livelihoods of hard-working Australians at risk and you are scaring children, you're a coward and you're a grub." Mr Morrison said.

"If you do that sort of thing in this country, we will come after you and we will throw the book at you."

Mr Morrison wants the laws to pass Parliament by the time it rises on Thursday evening.

"I don't care if you've got a gripe with a company, I don't care whether you've got a gripe with your fellow worker, this is a very serious thing," he said.

Attorney-General Christian Porter said the sanctions would not be applied retrospectively to those responsible for the existing strawberry saga.

"But the reason we are doing this so quickly is ... this sends a massive deterrence message to anyone out there who would further cripple this industry."

NSW authorities are investigating more than 20 incidents of needles found in strawberries. Source: Breakfast