How did sister Sichuan raincoat find nucleic acid fraud?

Some people invited students to take to the streets to gather in 500 yuan. Sister Raincoat in Sichuan found that nucleic acid was faked, and some students were invited to take to the streets to gather in 500 yuan. Sister Raincoat, who has more than 3 million fans in Tik Tok, has repeatedly exposed the fraud of the nucleic acid detection department of Tik Tok, and reported to the relevant departments in Chengdu that some students have recently been invited to gather in the street as 500 yuan.