Secondly , the article discusses present conditions of investigation cooperation in china in legislative and judicatory perspectives and points out various questions existing in practice , such as regional protectionism , institutional obstacles etc . part : the institutional study on the perfection of investigation cooperation in china 其次对我国侦查协作的现状进行评析。论述了我国公安机关侦查协作的现行法律规定及运行现状之后，指出我国当前侦查协作运行存在的问题，包括地方保护主义，无偿协作原则、机制阻碍、协作区设定不合理、协作责任规定不周全等问题。
This paper raises suggestions to settle some institutional obstacles in the process of protecting the historical heritage by making a comparative study on the differences in the legislation , administration and financial support in the four countries such as britain , france , japan and china 从历史文化遗产保护的立法体系、行政管理体系、保护资金保障制度三方面，比较了中国、英国、法国和日本的异同，提出了我国在历史文化遗产保护过程中需要从制度上解决的一些问题。
