China monitoring its overseas citizens with their own police.

"China has opened dozens of 'overseas police service stations' around the globe to monitor its citizens living abroad, including one location in New York City and three in Toronto."

https://nypost.com/2022/09/30/china-has-opened-police-stations-in-us-and-canada-to-monitor-chinese-citizens-report/?utm_source=twitter_sitebuttons&utm_medium=site%20buttons&utm_campaign=site%20buttons

"Europe is home to most of the police stations, with locations spread across the continent in places such as London, Amsterdam, Prague, Budapest, Athens, Paris, Madrid and Frankfurt. North America is also home to four of the stations, with three locations in Toronto and one in New York City. In all, there are 54 such stations in 30 different countries."

Why does China feel the need for three police stations in Toronto and only one in New York?

The Mainland Chinese government monitors every citizen through a smartphone app. Are they doing that in these countries?