Mom Wen Zhi can give lectures mainly because he has excellent professional knowledge. Doctor of Criminal Procedure Law, in-service criminal litigator of an intermediate people's court in Liaoning Province. He has eight years' experience in training civil servants, teaching Gong Ji common sense, public security professional knowledge, thesis writing and interview. His lecture style is humorous, which enables students to learn knowledge in a relaxed atmosphere. Experts who guide the national police recruitment, the teaching scope covers the whole country, with nearly 10,000 students.