A Porsche driver caught using a laser jammer to disable police speed guns has been banned in a landmark court ruling.Jamie Shreeve, 21, was handed a 30-day driving ban on Wednesday after he was stopped by police and caught red-handed. Shreeve, of Caister, near Great Yarmouth, is only the second motorist in Norfolk to be prosecuted for using the sophisticated hi-tech device. He is the first in the county to be given a driving ban for it. Shreeve’s benchmark ban was last night welcomed by two road traffic police officers who have been spearheading a crackdown on hi-tech speeders. The James Bond-style jammers are fixed to the outside of cars and wired up under the dashboard with an on-off switch. Sgt Geoff Bowers and Pc Chris Harris only became aware of them when they stopped a high-powered, turbo-charged Porsche 911 on the A47 in Norfolk in March. The two road traffic police officers have since come across dozens of the gadgets, costing up to £500 and sold on the internet as ‘parking sensors’. At least 10 other drivers are waiting to go to court after Shreeve. Sgt Bowers said: “This is the first case in Norfolk in which a motorist has been banned from driving for using a laser jamming device.”I’m extremely pleased with this result, which shows that the courts are taking these offences seriously.” He added: “People using laser jamming devices have no regard for speed limits and, therefore, put themselves and other road users in danger. More