Every year tens of thousands are killed on Thailand's roads, some of the world's most dangerous -- a tragedy that spikes during New Year week.
But junta chief Prayut Chan-O-Cha says he has had enough.
Under an executive order, police and security forces will be able to detain drunk drivers and those caught racing for between 7-15 days for compulsory "behavioural correction" sessions.
The order, which was published in the Royal Gazette yesterday, was made under controversial "Section 44" powers Prayut awarded himself to bypass his own rubber stamp parliament and issue any law in the name of national security.
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But it added: "They should not be treated as suspects... and their detention is not considered detention under the criminal law."
Prayut seized power in a May 2014 coup that toppled the democratically elected government of Yingluck Shinawatra.
The order is similar to powers which the military have since used to detain political critics without charge, a process the army insists on calling an "invitation" to an "attitude adjustment" session.
Most critics are only released once they sign documents vowing not to repeat their offences at the risk of having their assets seized.
Critics say he and his allies within Bangkok's royalist elite and middle classes have stifled democratic progress.
Previous Thai governments, both civilian and military, have certainly struggled to rein in the kingdom's shocking road death toll.
In a 2015 study on global road safety the World Health Organization found Thailand had the world's second most dangerous roads with 36.2 fatalities per 100,000 people.
The daily carnage spikes around New Year and the April festival of Songkran -- weeks that are both dubbed "The Seven Deadly Days".