Abstract: In police stations, there are records of crimes. Crime Records are unable to locate crimes and the offenders who committed them. To maintain the crime and criminal data under the current system, a FIR is used. It has less security and makes fraud simple to do. Each time, a manual update has been made to the record. This system's primary goal is to secure data utilising block chain technology. Using their authentication credentials, Crime Investigators can view the data form database. The reports, which are prepared by witnesses and police officers, are accessible to the investigator (writer).

Investigators have the authority to edit data (i.e., update, remove, and so on), and this data aids investigators in speeding up their investigations and identifying offenders more quickly. Previous research has focused on the centralized handling of digital evidence, however if a centralized system server is breached, sensitive operational and investigation data may be exposed. As a result, there is a need to manage digital evidence and investigative information in a distributed system setting using block chain technology. Performance is reduced when massive amounts of data, such evidential films, are kept in a block chain because more data must be processed only once before being generated. As a result, we suggest three-tier block chain architecture, with hot and cold block chains for digital evidence. Information that changes regularly is stored on the hot block chain, whereas material that does not change, such as files, is saved in the cold blockchain. To assess the system, we compared the storage and inquiry processing performance of digital crime evidence across the multi-level block chain system's capacities.

Keywords: FIR, Blockchain, Security, Cryptography.

PDF | DOI: 10.17148/IJARCCE.2023.12373

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