A 17-year-old P-plater who only had their license for 19 days has been detected travelling 58km/h over the speed limit.
Police on a mobile patrol detected a black Holden utility travelling at 148km/h on Bridport Road at Pipers Brook on Saturday afternoon.
Tasmania Police Senior Constable Tammi Lambert said the male Launceston driver was travelling with a female teenage passenger.
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"Speeding is a well-known risk factor in serious and fatal road crashes," Senior Constable Lambert said.
"Tasmania Police is always working hard with the community to educate drivers of the risks created by excessive speed.
"To see someone so inexperienced choose to drive this way, is disappointing given the significant risk that he not only placed himself under, but his passenger and all other road users."
P1 drivers are restricted to 90km/h in 100km/h zones.
The vehicle was clamped and the driver will be summonsed to court.
The driver could face a long period of disqualification and up to $1500 in fines and penalties.
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