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Evidence tracking / Crime scene / RFID CSI RFID tags will help dozens of professional crime solvers track all sorts of evidence from DNA to computers to handguns to cars, as they are processed, tested and analyzed. RFID-based evidence-tracking systems are ready for deployment by federal, state and local law officials. RFID offers significant benefits over bar code labels that many police departments currently use to track evidence, according to Jeff Skinder. Most forensic labs use a bar-code system which works well, but bar coding requires line of sight and is prone to errors. In some instances, for example, when evidence is checked out for testing, employees would forget to manually scan the bar code to document that movement. Forensic labs are just trying to find a way to speed up the process from admitting evidence to tracking that evidence. With RFID, they can take things to the next level. Once the evidence is tagged, the details of the item along with the unique serial number of the RFID tag attached to it is recorded into Evidence 2000 (E2000) software using an application developed by a Florida sheriffs’ department. Fixed RFID readers placed at various locations throughout law enforcement offices and courthouses would read each tag as it passes within range, creating a record of each item's last known location. In the evidence room, for example, each evidence desk would be fitted with a reader to record an item's location. Readers placed on exits from the evidence room would ensure that no unauthorized removal could take place by initiating a preselected security procedure (such as sounding an alarm or locking doors) should an attempt to remove evidence be made without first obtaining permission from the evidence room staff. The serial number of each tag would be linked to a database record for that item and could include all the relevant details regarding the item. Another challenge is taking a periodic physical inventory in the evidence rooms. Using RFID can cut the time from weeks to hours. Jeff Skinder 407-862-9994 skinny@obsol.com updated 9/5 2009
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