As the main purpose of having a crime statistics is to gather crime rate as a reference, the statistics measures trends in crime, which will be very useful to the public. In general, the statistics can measure the crime rate and level in society, at the same time reflecting the moral and social value. To the government, it is the best reference to evaluate the efficiency of the law and to set up the particular rule to protect the society. For the police, the statistics can give them a clear picture on the trend of crime, the detail information of the criminals, for instance, the age difference, their occupation and the relationship between social status and the kind of crime they committed are useful for the police authority to have a more detail planning on the solution in order to maintain the peace of the society. In addition, as mentioned above, the police can also evaluate their operations, for example, disturbing of manpower responsible for different region, to put more police force to areas that with higher crime rate and put more attention on the age groups that are found to have a higher chance as a criminal.