This is the best summary I could come up with:

South Korean police are investigating 17 US soldiers and five other people who allegedly smuggled or used synthetic marijuana via military mail.

A tip from the US Army’s enforcement arm had sparked a four-month investigation by Korean authorities.

It was one of the largest in recent years involving American soldiers, US media reported citing Cha Min-seok, a senior detective in South Korea.

Joint raids by South Korean police and the US Army’s Criminal Investigation Division found 77g (2.7oz) of synthetic cannabis, more than 4kg of “mixed liquids” used for vaping and a total of $12,850 (£10,440) in cash at the 22 suspects’ homes.

They are accused of smuggling synthetic marijuana - known by the street names K2 and Spice - into the country through the US military’s postal service.

In South Korea, those convicted of trafficking marijuana face from five years to life in prison.

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