Why South Wales Police are using the Leica Geosystems BLK360 for Laser Scanning Major Crime Scenes

购买法医激光扫描仪的旅程

罗素·加德纳（Russell Gardner）是南威尔士警察总部联合科学调查部门的主要法医成像官，该部门还为格温特警察提供服务。该部队一直在犯罪现场使用手动测量技术和传统视频/摄影，但可以看到激光扫描可以带来的好处。拉斯解释说：“因此，对于一些主要案件，我们为带来外部服务而付出了代价 - 但这永远不会成为长期解决方案。”

“ BLK360在我们的犯罪现场调查中表现良好。”拉斯·加德纳（Russ Gardner），南威尔士警察

长期捕捉的好处

根据拉斯·加德纳（Russ Gardner）的说法，“我们对系统的使用有助于我们避免打扰证据，我们可以在清除或处置任何东西之前永久捕获整个场景。然后，即使几年后，我们可以随时回到数据，以查看床的高度或证人的观点。这确实很重要，因为当您在现场时，您可能不知道几个月来可能会出现哪些问题。

作为法医成像专家，我们越来越多地改变了案件的结果，这也可能意味着对受害者或亲人产生积极的影响。

Using scan data can be important. We’re there at the very start of the case, gathering the evidence, and then again at the end when we present and interpret it in court. It’s a privilege to be involved in the whole journey, rather than just part of it.”

Scenario 1 – A buried victim

当在临时坟墓中发现尸体时，失踪人员案成为谋杀案。拉斯的团队在拆除尸体之前和之后扫描了葬礼区域，不确定数据可能会提供什么，但希望尽可能充分地捕获最佳的证据。

Experts including forensic archaeologists were able to infer how the grave had been dug and where the suspect had been standing as they had dug and shovelled the soil.

The scan data was key in producing a very accurate visual record of the grave shape and structure, which is often difficult to see from 2D scaled drawings, photographs and plot diagrams.

一位法医考古学家说：“扫描在这种情况下确实非常有效，它在以相对轻松，速度和最重要的是对我的尺度进行缩放的情况下做得很好，而没有侵犯坟墓或所包含的东西。您飞行的视频非常出色，并真正协助了证据。’

Senior Investigating officer DI Andy Miles said, “As the senior Investigating officer in this case I would have attended at the scene to view the landscape and deposition site for myself. Where this technology has a significant impact is for the benefit of others. The jury at the subsequent trial-obviously they would not have the benefit of being there themselves, the trial would have been many months later. I have no doubt that showing this emotive footage within the courtroom setting to the jury and the defendant has had the knock on effect of the defendant offering a guilty plea. Technology such as this cannot be underestimated in such cases”.

方案2 - 刺伤的车内谋杀案

CCTV footage showed a stabbing late at night in a vehicle parked outside a house. However, it was so dark that it was difficult to interpret the footage. So the following day, Russ’ team used the system to create a “bird’s eye” fly-through of the scene, orienting the vehicle in relation to the CCTV camera and its range of view.

Although the suspect was apprehended by other means, the scan data provided important confirmation and understanding of the location and orientation for all concerned in the case, especially the jury. A conviction resulted.

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