Beijing's guidelines issued in June instructed China's courts, prosecutors and state security agents to "severely punish Taiwan independence diehards" for what it called "secession."
The instruction was given during a two-day meeting on Taiwan that began February 25, the memo said, citing Taiwan's intelligence. The meeting was led by Wang Huning, who is part of the Communist Party's elite Politburo Standing Committee and one of President Xi Jinping's closest advisers, the memo said.
In the meeting, Beijing's embassies and overseas police stations in countries with "a high degree of trust" with China were asked to implement the guidelines by targeting Taiwanese tourists, students and residents, the Taiwan government memo said.
China's government has previously denied maintaining overseas police stations but has said there are volunteer-run centers outside China that help Chinese citizens renew documents and offer other services.