Some topics: the blazing new trails of preliminary, the expanding of interrogative range, hard to dig the roots of crime, the dropping of the quality of handling an case, all of these must be resolved by the development of preliminary discipline.

• 侦查讯问学代替不了预审学。 预审学科的理论创新、讯问范围扩展、难于深挖犯罪、办案质量下降等问题,都必须通过发展预审学科来解决。