Understanding of the importance of on-site investigation

Since the implementation of the "one long and four musts" on-site investigation mechanism at the end of 20 13, local public security organs have actively responded to the deployment of the Ministry of Public Security, based on local conditions, strengthened the implementation of responsibilities, promoted practical application, and continuously improved the ability and level of on-site investigation, providing strong technical support for cracking down on crimes and maintaining stability. In 20 17, public security organs at all levels in China * * * investigated 5316,000 scenes of various types, basically realizing that "the scene must be investigated and the information must be recorded", which played an important role in the criminal technical campaign of the special action of "three strikes and one rectification", and cracked134,800 cases with remarkable results.

In recent years, with the social transformation, economic development and the intensification of the flow of people and property, crimes against property such as theft, robbery, robbery and fraud are on the rise. Electric bicycles are stolen, mobile phones are stolen when taking public transport, and livestock in rural areas are stolen ... These cases are of little value, but they are directly related to the production and life of the people and affect their sense of security and satisfaction. It is understood that multiple cases of property infringement are numerous and extensive, accounting for more than 80% of all criminal cases.

"In the past, many small cases were not investigated at the scene. Even if some sites were surveyed, the quality of work was not high, and valuable trace material evidence could not be collected. A lot of on-site information is not entered into the system in time, which is not enough to support investigation and solve the case. The on-site investigation was not in place, which made many criminals explain the facts of the crime, but the case could not be found. Although some cases were discovered, they could not be identified because no valuable trace material evidence was extracted during the previous site investigation. " The relevant person in charge of the Criminal Investigation Bureau of the Ministry of Public Security introduced to the reporter. Long-term overwork, unstable criminal technical team and serious brain drain; The workflow and standard requirements of on-site investigation, information collection, input and comparison are not perfect, the informatization application of on-site investigation results lags behind, and there is no corresponding assessment and reward mechanism; Many grass-roots criminal technology rooms are poorly equipped and have poor quality, and their ability to find, extract and fix trace material evidence is weak ... These are the factors that lead to the relative backwardness of on-site investigation.

Solving the above problems involves many aspects, such as staffing, equipment, education and training. The criminal investigation department alone can't solve it, and the head of the public security organ must be personally responsible. To this end, the "one long and four must" on-site investigation mechanism came into being. The mechanism requires the county and city public security bureau chief to take overall responsibility for the on-site investigation work, and the on-site investigation work should be "must investigate, must collect, must record and must compare". "In the" one long and four essentials ","one long "is the key, and we must really put the burden on them. If' one long' is not implemented,' four musts' will be difficult to guarantee. " The relevant person in charge of the Criminal Investigation Bureau stressed.

Since 20 13 12-24, the Ministry of Public Security held a national deployment meeting of the new mechanism for on-site investigation of criminal cases in Guangzhou, and formally put forward the working mechanism of "one long and four musts" for on-site investigation, public security criminal investigation departments at all levels in various places have fully implemented the "one long and four musts" system for on-site investigation, and extracted trace material evidence, biological samples, video materials and electronic material evidence to the maximum extent. Since last year,