Enforcing sobriety checkpoints and random breath testing can lead to reductions in alcohol-related crashes of about 20% and have shown to be very cost-effective.

设立清醒度检查站以及进行随机呼气测试可使与酒精相关的碰撞事故减少约20%，已经证明这一做法非常具有成本效益。

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Random breath-testing is the norm across Australia, and the maximum breath alcohol is lower than in Britain.

BBC: The amber nectar