This would explain the poor standard of driving there

"A Masterton alcohol checkpoint had to be suspended on Friday after a flurry of drink-drivers stretched police resources and caused a queue to form at the police station's alcohol testing unit.

Three hundred vehicles were stopped at a Chapel St checkpoint between 8pm and 9pm on Friday, with four drivers arrested after testing over the limit within 30 minutes of setting up the operation.

"That's an extremely high number to be caught at one checkpoint," said Senior Sergeant Warwick Burr, of Masterton police.

He said the number of positive results left police struggling to keep up, at one point suspending the checkpoint because of a lack of staff to run it.

"It was that bad that when we got back [to the police station] we were queuing to use the testing device..."

It really is best not to be out at night in some places...