Officers from China's top internal security force - the People's Armed Police joined Hong Kong police on the frontlines to observe anti-government protests that peaked last year, according to a senior foreign diplomat and an opposition politician.Hong Kong police took PAP officers to monitor the protesters and their tactics as part of a wider effort by the paramilitary force to deepen its understanding of the Hong Kong situation, they said.
"I'm aware that Hong Kong police officers have taken Chinese security forces to the front during protests, apparently in an observation role," veteran democratic legislator James To told Reuters.
To said he had reason to believe the Chinese forces included members of locally-based PAP units.