两次用狮子扫描仪记录的国内恐怖袭击

Killeen德州警方法医团队,我们ing a Leica Geosystems 3D scanner, plays a crucial role in crime scene mapping of two notorious high-profile incidents: the Ft. Hood shooting and the suicide plane crash into the Austin, Texas IRS building.

得克萨斯州的基林（Killeen） - 2009年11月5日下午1:30之后，在德克萨斯州胡德堡（Fort Hood）的美国陆军基地的警察局警察在该职位上警告了一名活跃射手的地区执法机构，这可能是不止一个 - 导致了一名现场射手在大规模伤亡中。在几分钟之内，基林警察局局长丹尼斯·鲍德温（Dennis Baldwin）是该邮政直接附近的130,000个城市，成立了事件指挥中心，并联系了胡德堡警察提供帮助。

A 27-year veteran with the Killeen Police Department, Chief Baldwin is no stranger to horrific crimes. Eighteen years earlier a deranged man had crashed his pick-up into nearby Luby’s Restaurant where he then used two semi-automatic pistols to kill 23 people and wound 20 more before committing suicide. That event stood as the deadliest shooting incident by a single gunman in U.S. history until the 2007 Virginia Tech massacre of 32 students and staff.

“Several of us had been through the Luby’s massacre,” Baldwin explained,” And we knew what people were going through on the scene. In those situations there’s a lot of confusion and misinformation at first. We knew the best thing was to lend a hand but don’t get in the way.”

The Fort Hood authorities requested a tactical response team and assistance in stopping traffic coming onto the post. The Tactical Response Unit responded to assist in securing the area and search for any additional suspects, while surrounding agencies assisted KPD in traffic management near the post’s entrances. Fort Hood is one of the largest military installations in the world, covering 350 square miles and serving as home to 55,000 military personnel. Shortly thereafter, the base’s Criminal Investigation Division made a second request of Chief Baldwin: to send his department’s forensic team with its recently acquired Leica Geosystems’ 3D Laser Scanner.

鲍德温说：“我们是德克萨斯州唯一拥有扫描仪的第一个，也是当时唯一的机构，而霍德堡警察已经意识到了其非凡的能力。”“我们立即部署了我们的团队。”

“We were there within an hour after the shooting,” remembers Detective Keith Drozd (rhymes with rose), who led the team. “It was a very high-stress environment with people running around everywhere. Certainly the largest crime scene I’ve ever been on—a row of six buildings the length of a football field and almost as wide, a parking lot on either side of the buildings. Outside there was medical paraphernalia everywhere, blood everywhere on the ground. Windows broken where people had thrown chairs through the glass to escape. The dead were still inside the building, but the shooter had also come outside and shot people. A few of the wounded were still on the ground being treated.”

Drozd和他的团队上班，利用扫描仪的强大的远程测量能力，在建筑物内部和外部进行扫描。他们的映射工作至关重要。尽管很快负责调查的联邦调查局（FBI）有几次激光扫描仪，但有两名在伊拉克使用，而其他联邦调查局则回到了弗吉尼亚州的联邦调查局总部。区域机构调查人员只有一个总站，他们将其带到现场。

“The next day, after we wrapped up our scans, we met with an FBI computer technician,” Drozd recalls. “He works a lot with CAD programs (Computer Assisted Design) and we were able to download to his computer all the scan data we had collected. We later learned that (with a technical assist from Leica Geosystems) the FBI was able to generate an impressive presentation that they showed to President Obama during a White House briefing. It was an honor to have given them that data to show the president.”

Drozd credits the Leica ScanStation’s ease of use for giving his team confidence even while working in a highly charged environment under a national spotlight. “I can’t imagine how hard documenting a crime scene like Fort Hood would be without this Leica scanner. Using only tape measures, a total station and a plumb bob would have taken us days. With the ScanStation, even though your anxiety level is high and there’s immense pressure to get it right, you know this is a very easy instrument to operate.”

首席鲍德温表示赞同:“佛rt Hood shooting, with its massive crime scene, really showed us what tremendous capabilities the Leica ScanStation has. The agencies in our area quickly came to realize how important the technology is to forensically mapping these very difficult crime scenes."

A little more than three months after the Fort Hood shooting, the Killeen Police Department’s forensic team was again asked to assist with a high-profile incident, this one in Austin, Texas, just 75 miles south of Killeen. At 9:56 a.m. on February 18, 2010, a suicidal, disgruntled tax payer, Andrew Joseph Stack, deliberately flew his Piper Dakota airplane into a seven-story office building containing the field office of the Internal Revenue Service. The collision caused a huge fireball and explosion that led to later speculation that Stack had replaced the passenger seats on his plane with drums of aviation fuel before taking off. The crash killed Stack and an IRS office worker and wounded 13 others, two seriously. Detective Drozd and three detectives responded immediately.

碰巧的是，联邦调查局的重大事件犯罪现场调查部门在其隔壁大楼的区域办公室举行了一场员工会议。首席调查员熟悉基林警察局在胡德（Fort Hood）事件期间与莱卡（Leica）3D激光扫描仪的出色工作，他立即与KPD联系，并要求他们的法医团队和扫描仪来到坠机现场。Drozd侦探和三名侦探立即做出了反应。

到达现场，Drozd再次发现自己在被媒体马戏团包围的聚光灯下工作。“有很多新闻卡车，到处都是卫星菜肴，记者和摄制组。建筑物的整个前部都被打碎，吹来并燃烧。我们在碎片田的外围设置了大约七十码，深六十码处。从建筑物吹来的档案柜，办公家具，玻璃和残骸都散落在各处。”

Drozd’s team was soon joined by Austin resident and Leica Geosystems trainer Karen Hughes, who lives just 15 minutes from the IRS building and who volunteered to provide any assistance that might be needed during the scanning. The crime scene they faced this time differed significantly from the Fort Hood setting. Here the primary focus was a large gaping hole in the front of the building between the third and fourth story.

“Just behind us was a large dirt embankment, maybe thirty feet high,” Drozd explained. “What had happened was the plane actually hit the embankment first and exploded—the front end of the aircraft bounced up and into the window while the back end hit a large steel support beam. We were facing a forensic scene unlike any we’d had before.”

“没有可能的方式,调查人员外壳d have mapped the damage to the side of that building with traditional measuring tools, let alone even accessed it,” Drozd explained. “The collision opening was three stories above us and no one was allowed inside until engineers had determined it would not collapse. We worked our way across the building front and captured multiple scans. The Leica ScanStation performed flawlessly.”

The ScanStation’s data files for both the Fort Hood and Austin crime scenes were essential elements of the evidence gathered in both incidents. In the Fort Hood shooting, a single assailant, Army Major Nidal Hasan, was charged. That case has not yet gone to trial, but the Leica ScanStation data files will be used to generate numerous exhibits for use in that court proceeding when it does take place.

“Regardless of what crimes our detectives are responsible for processing,” explained Chief Baldwin, “It’s nice to know that the Leica ScanStation is capable of handling it. The system is easy to use and quickly provides forensic mapping and allows detectives to virtually ‘return’ to the crime scene for investigative follow-up. My detectives believe it is truly a remarkable system. Moreover, there’s no better method to present a case in a court room.”

While the Killeen Police Department has used its Leica 3D scanner on numerous major crimes, its successful experience deploying the system in the extremely challenging crime scene environments presented by the Fort Hood shooting and the Austin plane crash provided a powerful validation of the Leica ScanStation’s formidable capabilities. “Unfortunately in today’s society, we are seeing horrific crimes committed,” Chief Baldwin concluded. “These crime scenes can be very difficult to process. Having a system that can forensically measure these scenes is invaluable to the law enforcement mission. I believe other police chiefs are realizing this
fact, as well.

Written by Tony Grissim