Trusted Records Scheme in Scene Investigation

Crime scene investigation is an important police task of which aim is to preserve the integrity of physical evidence, assist investigators to reach an ultimate conclusion, and provide legally valid evidences and reports to the court. The scene investigation recording is not only a hard task but also the most important step in the crime scene investigation work. The digitized scene survey records have been widely used in police work, but many problems such as untimely production, non-objectivity and illegality appear in actual operation. Based on the Chinese cryptographic standards, this paper proposes a set of trusted processing schemes for data records, which guarantees the credibility of the records by collecting the time, the space and the people related to the data. It ensures the objective of the production time, location, and operator.