Posts Tagged ““Active Denial System””

Source: New Scientist

The research arm of the US Department of Justice is working on two portable non-lethal weapons that inflict pain from a distance using beams of laser light or microwaves, with the intention of putting them into the hands of police to subdue suspects.

The two devices under development by the civilian National Institute of Justice both build on knowledge gained from the Pentagon’s controversial Active Denial System (ADS) - first demonstrated in public last year, which uses a 2-metre beam of short microwaves to heat up the outer layer of a person’s skin and cause pain.
‘Reduced injuries’

Like the ADS, the new portable devices will also heat the skin, but will have beams only a few centimetres across. They are designed to elicit what the Pentagon calls a “repel response” - a strong urge to escape from the beam.

A spokesperson for the National Institute for Justice likens the effect of the new devices to that of “blunt trauma” weapons such as rubber bullets, “But unlike blunt trauma devices, the injury should not be present. This research is looking to reduce the injuries to suspects,” they say.

Existing blunt trauma weapons can break ribs or even kill, making alternatives welcome. Yet ADS has recorded problems too - out of several thousand tests on human subjects there were two cases of second-degree burns.

Dazzle and burn

The NIJ’s laser weapon has been dubbed Personnel Halting and Stimulation Response - PHaSR - and resembles a bulky rifle. It was created in 2005 by a US air force agency to temporarily dazzle enemies (see image, right), but the addition of a second, infrared laser makes it able to heat skin too.

The NIJ is testing the PHaSR in various scenarios, which may include prison situations as well as law enforcement.

The NIJ’s portable microwave-based weapon is less developed. Currently a tabletop prototype with a range of less than a metre, a backpack-sized prototype with a range of 15 metres will be ready next year, a spokesperson says.

The truly portable mini-ADS could prove the more useful, as microwaves penetrate clothing better than the infra-red beam, which is most effective on exposed skin. Although the spokesman says: “In LEC [Law Enforcement and Corrections] use there is always a little bit of skin to target.”

Torture concerns

The effect of microwave beams on humans has been investigated for years, but there is little publicly available research on the effects of PHaSR-type lasers on humans. The attraction of using a laser is that it can be less bulky than a microwave device.

Human rights groups say that equipping police with such weapons would add to the problems posed by existing “non-lethals” such as Tasers. Security expert Steve Wright at Leeds Metropolitan University describes the new weapons as “torture at the touch of a button”.

“We have grave concerns about the deployment and use of any such devices, which have the potential to be used for torture or other ill treatment,” says Amnesty International’s arms control researcher Helen Hughes, adding that all research into their effects should be made public.

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Source: Wired.com

The Active Denial System, or ADS, is a less-lethal weapon that uses directed energy — millimeter waves — to heat up the top layer of skin. It is specifically designed not to cause any injuries, such as burns. There have been several incidents of blistering, however, and the most serious accident took place last April, when the Air Force revealed that an airman taking part in a test of ADS had been injured severely enough to be treated at a burn center. Few details were made available about the incident.

Of course, we did know about that accident, but the officials at Quantico that day assured us that the system had been tested thousands of time with no ill effects, and we were promised that details on that accident would be forthcoming soon — just not until after we had been zapped. We also didn’t know at the time — even though the Air Force had by that point fully investigated the accident and issued a mishap report — that the accident was the result of missing safety equipment and a near farcical lack of operator training.

You wouldn’t, however, know these facts based on a heavily redacted version of the accident report, released to DANGER ROOM shortly after that press day. That version of the report did reveal that the accident took place after the weapon accidentally flipped to full power, giving a much-too-strong dose to the unlucky volunteers. What was missing was why this happened. While the Air Force, in its letter to me, claimed that release of the full report would have a “stifling” effect on open discussion, the deletions were so broad and arbitrary that it rendered the entire report almost incomprehensible.

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Source: Wired.com

After years of testing, the Active Denial System — the pain ray which drives off rioters with a microwave-like beam — could finally have its day. The Army is buying five of the truck-mounted systems for $25 million. But the energy weapon may face new hurdles, before it’s shipped off to the battlefield; a new report details how the supposedly non-lethal blaster could be turned into a flesh-frying killer.

The contract for the pain ray trucks is “expected to be awarded by year’s end,” Aviation Week notes. “A year after the contract is signed, the combination vehicle/weapons will start be fielded at the rate of one per month.”

It’s been a very long time coming. As we’ve previously reported, there have been calls to deploy the Active Denial System in Iraq going back to 2004. But it’s always been delayed for legal, political, and public relations reasons. Anything that might be condemned as torture is political dynamite. Interestingly, the version being bought is not the full-size “Version 2,” but a containerized system known as Silent Guardian, which Raytheon have been trying to sell for some time. They describe Silent Guardian as “roughly 1/3 the size and power of the other Active Denial Systems,” and quote it’s range as “greater than 250 meters.” The larger system has a range somewhere in excess of 700 meters.

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Creative Commons Attribution 3.0 Unported