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Crime scene reconstruction help put pieces of a case together. The steps to crime scene reconstruction involve: the initial walk-through and examination of the crime scene, organizing an approach for collecting evidence, formulate a theory, use the theory to track down suspects, reconciling all evidence that refutes the hypothesis or creates one.
Crime pattern theory is a way of explaining why people commit crimes in certain areas. Crime is not random, it is either planned or opportunistic. [citation needed] According to the theory crime happens when the activity space of a victim or target intersects with the activity space of an offender.
Bloodstain pattern analysis (BPA) is a forensic discipline focused on analyzing bloodstains left at known, or suspected crime scenes through visual pattern recognition and physics-based assessments. This is done with the purpose of drawing inferences about the nature, timing and other details of the crime. [ 1 ]
Many prisons, especially in countries where escaping from prison is a crime, use security features such as CCTV, perimeter sensors, barred windows, high walls, barbed wire, razor wire, and electric fencing to prevent escapes. Even natural geographic features can play significant roles in preventing escapes; historically, mountains and islands ...
Crime mapping is used by analysts in law enforcement agencies to map, visualize, and analyze crime incident patterns. It is a key component of crime analysis and the CompStat policing strategy. Mapping crime, using Geographic Information Systems (GIS), allows crime analysts to identify crime hot spots , along with other trends and patterns.
Sometimes, police departments conducting manhunts will solicit help from the public in locating the suspect. They will do this by broadcasting a description and other information on television, radio, and other public media, by going door to door and asking individuals if they have seen the suspect, and by placing wanted posters in public places.
Perimeter security is designed with the primary purpose to either keep intruders out or captives contained within the area the boundary surrounds. Both natural and manmade barriers can serve as perimeter security.
Rural criminology is the study of crime trends outside of metropolitan and suburban areas. Rural criminologists have used social disorganization and routine activity theories. The FBI Uniform Crime Report shows that rural communities have significantly different crime trends as opposed to metropolitan and suburban areas.