The Taipei MRT Police Team has stepped up patrols across the board.

(Photographed by reporter Liu Qinghou)

[Reporter Liu Qinghou/Taipei Report] The Taipei MRT Company has been sent threatening letters in the past two days. The police task force based on the "behavior pattern" and "colloquial pattern" of the perpetrators, initially judged Zhang, a Chinese student who had come to Taiwan to study. Haichuan is suspected of serious crimes.

The customer service mailbox of Taipei Mass Rapid Transit Company received a threatening letter from an unknown source yesterday (27th), threatening to place three explosives on the MRT platform and detonate them at any time.

Unexpectedly, this morning (28th), the customer service mailbox of the MRT Corporation received another threatening letter signed by "Gu◎Hua", claiming that "a knife has been prepared, and it will be randomly used on the Bannan Line train at around 2 pm today. Kill people and enjoy the thrill of blood gushing."

Beijie is currently strengthening inspections and vigilance in safety blind spots such as station platforms, carriages, toilets, and fire-fighting facilities.

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According to the police, Zhang Haichuan’s modus operandi likes to intimidate the travel and transportation system. For example, Zhongjie, Gaojie, Beijie, and Taiwan Railway have all sent threatening letters, and they have also sent threatening letters to the presidential palace.

According to the police, Zhang Haichuan sent a threatening letter in 110 years because he failed to pursue a schoolgirl, but was seized under the command of the Taichung District Prosecutor's Office. Send threatening letters.

The special case team stated that the Electronic Investigation Team of the Criminal Bureau has repeatedly locked Zhang Haichuan in the case. Last year, through channels, the Chinese police assisted in the investigation and learned that Zhang Haichuan appeared in the Zhejiang area in June last year, but there was no news after that.

According to the police, since September of the previous year, mass transportation companies and government agencies in China have been threatened by online messages to plant bombs in an attempt to cause public panic.

The gangsters even said to the police, "I can't find me", "Please come on", "Railway detective" and so on.

The police traced the IP and found that it was through the "Tor" onion network, and through multiple springboards outside the United States and other countries, the original IP location was concealed.

The police screened out the former criminals who had committed threats to endanger safety one by one, and identified Zhang Suspect who had committed cyber intimidation. At that time, Zhang Suspect, who was studying in university, was rejected by pursuing Chinese girls from other schools. He first used other people’s student mailboxes and sent letters Intimidated the junior, and soon stole the student mailbox of the junior, intimidated the teacher of the junior, and left a message in the course selection system to plant a bomb in the school.

Follow-up investigation by the police. In November last year, Taiwan Railway was threatened by a bomb. The gangster pretended to be the "Director of the Taichung City Investigation Department" and threatened to plant a plastic bomb. The method was also through the "Tor" onion network to communicate with the public transportation company and the public office under investigation. The case of the agency threatening to drop bombs is the same, and both have Chinese language. Another suspect Zhang threatened the junior girls and the school.

As for last May, someone in the name of "Takahiro Karazawa" once again sent emails to unknown targets, threatening to throw bombs at Taipei 101, shoot politicians, etc., because the path was different from the past, using the Japanese host as a springboard. Whether Zhang Sui also did it, or someone deliberately imitated it, remains to be clarified by the prosecutors and police.