Originally posted by the Voice of America. Voice of America content is produced by the Voice of America, a United States federal government-sponsored entity, and is in the public domain. Hong Kong Police Arrest Documentary Producer Over Mob Attack Program Radio Free Asia Police in Hong Kong arrested a producer Tuesday who made a documentary for government broadcaster RTHK about a July 21, 2019, mob attack on train passengers in Yuen Long. Bao Choy, who worked on an investigative documentary showing how police were present as baton-wielding men in white T-shirts began to gather in Yuen Long ahead of the bloody attack on passengers and passers-by, was arrested at her home, RTHK reported. Police carried out a search of Choy's home in Mei Foo, and she was taken away by officers at about 3.30 p.m., the report said. She was arrested on suspicion of road traffic violations relating to vehicle registration searches used in the program. Her arrest has prompted fears that she is being targeted for political reasons. She was released on bail after about six hours of questioning, RTHK reported. The Hong Kong Connection TV documentary titled "7.21 Who Owns the Truth?" showed clips from surveillance cameras at shops in Yuen Long and interviewed people who were identified in the footage. Its airing forced police to admit they already had a presence in the town but did nothing to prevent the attack following initial denials. .