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28 Law Enforcement Technology June 2014 www.officer.com COVER STORY Distance and movement Handheld units like the Range-R from CyTerra Division of L -3 Communications Security and Detection Systems, and Camero- Tech's Xaver 100, offer basic distance information. With a selectable range of 65 feet (20 meters) for the Xaver products and up to 50 feet with the Range-R , both devices inform the user of the distances between and move- ment of persons inside. The Xaver 100 and Range-R are like Apple and Android smartphones; both allow you to make a call—just with a different user interface. The Xaver 100 shows a person's distance on an adjust- ing-scale display in two-meter intervals. The Range-R, however, provides more of a numerical reading and classifies targets into two categories, "movers" or "breathers," and displays the appropriate icon for this for each person detected. Camero-Tech has recently integrated this technology into their Xaver airborne imaging drone (AID)—ultimately a 'through the roof ' solution. Distance, movement and position How about position in the room? Are they to the left? To the right? Are there static objects? The radar technology in a device like the Xaver 400 can answer these questions as well as report how far they are from the wall. The device's interface is split into two with a grid overlaid for distance. One half plots movement in a top-down image of the room with unique icons for each detect- ed object (alive or static). The second provides a type of movement graph. As objects move closer a line adjusts accord- ingly. Each object reads with its own line. SWAT teams around the country have used this two-dimensional infor- mation since 2009. Benson's team in Georgia has reportedly deployed the Xaver 400 in over 100 different opera- tional urban missions, such as warrant arrests, drug raids, hostage situations, building assaults and armed standoff situations. 3-D room imaging The Xaver 800 works much the same as the 400, but includes height detec- tion. Using the same UWB sensors, the device analyzes data and produces, Federal Signal's latest solution for safeguarding law enforcement professionals. To help offcers work more , DTX Digital In-Car V r demands of law enforcement. What's more, DTX is engineered for software and frmware upgrades to ensur as compatible with tomorrow' s. Contact us to fnd out more about the DTX In-Car Video System. www.fedsig.com/dtx 800-264-3578 Circle 56 on Reader Service Card As events unfolded, their through-the-wall kit allowed [offcers] to see a suicidal woman holding a butcher knife to an infant's throat... LET_26-31_ThroughWall0614.indd 28 5/20/14 1:45 PM