Although international crime,foreign related crime and transnational crime have indelibly historical relations in the origins,they have not identical or embracing relationships for contents at all,but an interlock or independent relationship.

As a result to different understanding of the international crime s essence,the country legal liability nature,the national crime standard s,the scholars of international criminal varies to the international subject of crime s scope limits.

On theoretical Level, the scope of international crimes includes 31 crimes such as war crime, aggression crime, crime against humanity and etc.

And finally,the author points out that due to the flexibility and low-cost of hybrid tribunals,they are likely to take the place of the ad hoc international criminal trbunals in the legal system to combat international crimes.

The international criminal responsibility of individuals is the necessary and essential problem when we discuss the criminal responsibility of international crimes.

on July 1st ,2002,the International Criminal Court (ICC )which was expected for a long time was established ,which strongly impacted the pattern of punishing international crimes ,and dawned a new era of the international criminal justice .

CCTV Monitoring System and Crime Prevention and Virtual Investigation;

Crime Prevention in the Vision of Criminal Personality;

The Role of Physical Environment in Crime Prevention and Safety in Residential District;

In view of the tendency of the undergraduate-crime rising obviously,we took the methods of mass questionaires,separate questionaires and the theme-activities of preventing crime in some universities of North China.