Jaycee Chan
On August 18, 2014, it was reported that Ko Chen-Tung had been arrested on August 14 by the Beijing Police for drug use, along with Jaycee Chan, a Hong Kong actor. Reports from urinalysis showed positive results for marijuana. Ko had appeared in a 2012 anti-drug advertisement in Taiwan where he and other celebrities declared "I don't use drugs". He was released on August 28 and had to face another round of interrogations by the Taipei District Prosecutors Office after returning to Taiwan.