Alexander Yuk Ching Ma (2020)
New York Police Department detectives arrested Ma at his Queens home. Federal prosecutors said he ran an illegal overseas police service station for China's Ministry of Public Security from an office in Manhattan's Chinatown, policing Chinese nationals in the US outside Beijing's jurisdiction.
Ma was charged with acting as an agent of a foreign government; the arrest revealed Chinese policing operating inside American cities.
The case fueled scrutiny of China's transnational policing, which Beijing denied running abroad.
Both cases show Beijing's security apparatus reaching into US cities to monitor people it considers threats—there, Chinese citizens, here, a foreign leader's family.
