How a TASER CEW Works

Learn How!

First, let’s start with the basics:

what_is_electricity

Electricity is a flow of energy, or more specifically a flow of electric charge within a conductor. That conductor can be a copper wire, or it can be the human body. Much like water flows through a pipe, electrons flow through a wire. When we measure electricity, there are two key measures – voltage, measured in volts, & current, measured in amperes.

Voltage is similar to the pressure in a water hose. The voltage provides the “pressure” to push an electric current through the wire.

Current is the measure of the actual flow of electricity – how many electrons are actually flowing through the wire.

In our analogy to flowing water, voltage is like pressure, measured in pounds per square inch. Current is the flow rate, similar to gallons per second in our water analogy.

electricity_analogy

By way of analogy, let’s compare a waterfall to rainfall. The pressure or voltage behind each droplet of water in the waterfall is actually a lot less than for each rain drop – because the rain drop is falling from a much greater height. So, the “voltage” of this waterfall is much less than for rain.

However, the rate of flow or “current” for the waterfall is much, much higher than for the rain, which falls in small droplets separated in space & time compared to the continuous flow of the waterfall. Standing under the waterfall would certainly be a very dangerous place to be – much more so than in the rain. Similarly, being exposed to a high current electrical current – like the one out of your wall outlet, can be very dangerous, even at moderate voltages like 110 volts.

Exposure to high voltage, low current shocks – such as a static discharge on a dry day, is far less dangerous. Static shocks regularly exceed 30,000 volts, yet they deliver very low amounts of electric charge, & there has never been a reported injury directly from the effects of a static shock, although there have been some secondary injuries from people who were surprised & may have fallen, etc.

When we think about electricity, the first term to come to mind is usually “volts.” This is because our electric power grid is a fixed voltage system, & is rated in volts.

However, when we talk about electricity safety, the current in amperes is much more critical than voltage. For example, a TASER CEW has about a tenth of the peak current of a static shock.

So, if voltage is not the key factor in making an electrical stimulation effective, why does a TASER CEW have a high peak voltage?

The rainfall analogy is a very good one for a TASER CEW discharge. The drops of rain are separated by time & space such that the actual “current” or flow of water down from the sky is quite small.

So, this naturally begs the question – if the TASER CEW output current is so low, how can it be effective in stopping a violent subject?

jamming_the_nervous_systemThe answer is because the TASER current does not rely on brute force, or on sheer power. Instead, the CEW’s pulsed output is really an elegant approach to incapacitating violent persons. Our TASER CEW pulses mimic the electrical signals used within the human body to communicate between the brain & the muscles. It simulates the pulsed communications used within the nerves, & interferes with communication – like static on the telephone lines within the body. When the device is on, a person cannot do controlled movements.

Sometimes people will ask “Isn’t electricity dangerous?” The answer is – well yes, it can be. But electricity is actually necessary for life – we literally cannot live without it.

brain_&_electical_pulses
 

Electrical pulses control every thought we have, every breath we take, every sensation we feel, every sight we see, every sound we hear – every complex life process depends on these electrical signals within our bodies that occur billions of times every second.

electrical_pulses
 

The brain is like an incredibly complex conductor, leading a string section of incomprehensible complexity. As the brain uses electrical “pings” to stimulate the nerves in a complex & highly coordinated fashion, consciousness emerges & neuromuscular control becomes possible.

TASER_X26
 

The probes deployed from a TASER CEW carry fine wires that connect to the target & deliver the pulsed current into the neural network. These pulses delivered by the TASER CEW overwhelm the normal nerve traffic, causing involuntary muscle contractions & impairment of motor skills.

TASER Training

training_academy_logoTASER International, through the TASER Training Academy, offers several courses of instruction involving the TASER® X2™, TASER X26™ & the new TASER X26P™ Conducted Electrical Weapons (CEWs). These courses are presented at our headquarters facility in Scottsdale, Arizona, & at numerous locations throughout the United States & abroad. Courses currently being offered include the TASER Instructor Course, the TASER Technician Course & the TASER Evidence Collection & Analysis Course.

TASER Instructor Course

TASER_trainingThis course certifies students to instruct & certify end users on the X26 & X2 TASER conducted electrical weapons (CEWs). This class is taught online, lectures & demonstrations, plus practice & scenario-based training. Certification is valid for two years.

 

 

Technician Course

This course focuses on preventative maintenance, troubleshooting, downloads, & several other topics. Students will be shown how to make external repairs as well as troubleshooting procedures & preventative maintenance. Topics covered in this course include electrical output, data downloads, repair procedures & tracking & maintenance among others.

TASER Evidence Collection & Analysis

probe_removalThis course focuses on collecting & analyzing the physical & digital evidence associated with a TASER deployment. Students learn to  have a thorough understanding of techniques for the proper identification & evaluation of the physical & digital evidence associated with a TASER device following a deployment.

TASER Use of Force, Risk Management & Legal Strategies Seminar

This course addresses issues of importance to law enforcement executives, command staff, medical  experts & directors, risk managers, press information officers, & government legal counsels. This class is conducted in conjunction with the FBI National Academy Association. Attendees receive substantial factual information as to how TASER CEWs incapacitate individuals, how these devices fit into law enforcement use‐of‐force deployment strategies, training considerations, various policy recommendations (including IACP, PERF & others), updates on medical studies & the current findings, the effects of TASER devices on liability exposures & on reducing officers’ & suspects’ injuries.  This course also discusses how to approach key stakeholders such as community leaders with outreach and encourages interaction with the media to keep reporters in the loop and knowledgeable about TASER CEWs.

To learn more about the schedule of training events, please visit:  http://www.taser.com/training/training-events/all-events.

New TASER X26P Smart Weapon Announced

Revitalized CEW Combines Classic Features With Modernized Technology

TASER International, Inc.  unveiled the TASER® X26P™ Conducted Electrical Weapon (CEW) as its newest innovation in the 2013 line of TASER Smart weapons. The single-shot X26P uses the same standard TASER cartridge as the X26 and includes new enhancements and safety features that integrate core elements of the Smart TASER platform from the TASER X2.

X26P Yellow 3Q Drama Yellow

The new TASER X26P

“The new X26P will feel familiar to many law enforcement officers, combining the form factor and cartridge from the original X26 with improved ergonomics, weatherproofing, and updated Smart technology features,” said CEO and founder Rick Smith. “Smart technology adds enhanced safety and performance, improved data and analytics together with superior quality, reliability and durability.”

“The X26P is a result of 10 years of technological advancements and the ‘TASER Experience,’ incorporating the voice of our customers and their needs with our world class research and support teams. The voice of the customer is critical to our success and based on this feedback we know there is a continuing market need for a cost effective single-shot device similar to the X26 which does not require substantial new training or changing inventories of cartridges. We found in our testing that some of our customers wanted the feature-rich improvements from the X2, but delivered in the X26 form factor. The X26 was our most popular model but had not seen any major change in nearly a decade — until now.”

“The TASER X26P reaches back to the basics of what makes TASER great in the hands of officers. Details about every deployment can now be traced back to the unit, making the X26P easier to use and ultimately easier to trust,” concluded Smith.

Smart Technology Details

  • An all-digital, solid-state architecture using Charge Metering that measures and delivers the amount of electric charge to maximize both safety and effectiveness.
  • Trilogy Logs that include Engineering and Event Logs that record every user action such as: safety activation; trigger duration with times, dates, battery life; and a pulse-by-pulse record of the charge output.
  • Universal Smart Platform where the following are compatible with both the X26P and X2: TASER CAM HD recorder, high capacity Performance Power Magazine (PPM), Automatic Performance Power Magazine (APPM) with automatic 5-second cycle shutoff, and firmware updates over the internet.
  • Like other Smart CEWs, the X26P integrates with EVIDENCE.com, which helps manage and analyze evidence data with best-in-class security and ease-of-use.

X26P Black 3Q Right Front TCAM

The New TASER X26P with TASER CAM HD Record Accesssory

Quality and Reliability Improvements

  • IPX2 rated weatherproofing to resist rain and humidity.
  • The X26P is backed by TASER’s world class warranty and customer support.
  • A new and improved eXtended Performance Power Magazine (XPPM) that provides an extended grip on the handle and an improved location to store and protect an extra cartridge.

Cost Effective

  • Upgraded battery performance using a highly improved power magazine that lasts twice as long as the battery used with the original X26.
  • Upgrade and trade-in program available for current customers (www.TASER.com/upgrade)
  • The X26P is priced at $849.95. A variety of power magazine options including TASER CAM HD, PPM, APPM, and XPPM are sold separately to allow agencies to customize their device configuration.   (Note:  the X26 holster will not fit the new X26P).

Links

Dr. Douglas Zipes’ Article Published in the American Heart Association’s “Circulation” Journal & TASER Safety

BACKGROUND:

Dr. Douglas Zipes recently had a case series publish in one of the American Heart Association’s journals called, Circulation

Zipes’ article is not a position paper by the American Heart Association.  A case study or even a case series should report interesting associations and novel curiosities of medicine based on uncontrolled and anecdotal observations.  His article provides observational data from a series of 8 cases provided to him in his disclosed role as a plaintiff’s expert during litigation of these cases.  He does not conclude that these cases reveal a fundamental flaw in the design of the devices.

STATEMENT:

  • “The article is clearly self-serving as Dr. Zipes’ primary interest in this area is being a plaintiff’s expert witness who has been paid $1,200 per hour – more than $500,000 total to testify against police and TASER.”
  • “One example of Dr Zipes’ bias is his omission of important facts that contradict his agenda.  For example in his case #4, video clearly showed that the officer missed the subject.  Scanning electron microscopy of the probes also confirmed that no current was delivered through the wires to the subject.  There are key facts that contradict the role of the TASER device in all of these cited cases, and Dr. Zipes has conveniently omitted all facts that contradict his opinion, but this case most clearly demonstrates his lack of objectivity and scientific rigor.”
  • “There have been 3 million uses of TASER device worldwide with this case series reporting 8 of concern.  This article does not support a cause-effect association & fails to accurately evaluate the risks versus the benefits of the thousands of lives saved by police with TASER devices.”

TASER SAFETY

The American Medical Association issued a White (Position) Paper on TASER safety in June 2009 that states:

  • “Most studies undertaken by law enforcement agencies (and others) indicate that deploying CEDs relative to other use-of-force options, such as pepper spray, physical force, police dogs, and batons, reduces injuries to officers and suspects and reduces the use of lethal force.”
  • “Furthermore, no evidence of dysrhythmia or myocardial ischemia is apparent, even when the barbs are positioned on the thorax and cardiac apex.

Clearly Dr. Zipes has a strong financial incentive based on his career as an expert witness, which might help explain why he disagrees with the findings of independent medical examiners with no pecuniary interest in these cases as well as the U.S. Department of Justice’s independent study that concluded: 

  • “There is currently no medical evidence that CEDs pose a significant risk for induced cardiac dysrhythmia in humans when deployed reasonably.”
  •  “The risks of cardiac arrhythmias or death remain low and make CEDs more favorable than other weapons.”

There are critical statements in this three-year study called, Study of Deaths Following Electro Muscular Disruption, in which a panel of experts examined why individuals died after exposure to a TASER device (aka CED) during encounters with law enforcement.  The panel, selected in collaboration with the College of American Pathologists, the Centers for Disease Control and Prevention, and the National Association of Medical Examiners, reviewed nearly 300 cases to determine whether CEDs contributed to or were the primary cause of death.

The panel found that while in some cases the possibility that the direct effects of a CED can be lethal cannot be excluded, the risk of death due to the electrical effects of a CED has not been conclusively demonstrated and that caution should be used when interpreting the inclusion of a CED on a death certificate or the classification of the manner of death as a homicide as an absolute indictment of the CED as the sole or primary reason for the death.

The panel found that from a medical perspective, law enforcement need not refrain from using CEDs, provided the devices are used in accordance with accepted national guidelines and appropriate policy.  The use of a CED on potentially at-risk individuals should be minimized or avoided unless the situation excludes other reasonable options.  It is critical to minimize or avoid multiple or prolonged activations of CEDs to subdue an individual.  However, there may be circumstances where this is required.

The panel members included a cardiologist, an emergency medicine doctor, five medical examiners, and a toxicologist. Consulting specialists were available to the panel as needed and included an anesthesiologist, clinical pathologist, epidemiologist, electrical engineer, neurologist, and psychiatrist.

Bias in So Called TASER Deaths?

What does one do with more TASER Kills, TASER Death Headline Fails?  Perhaps these errors could serve as a classic case study in bias & speculation. It might provide insight on how perceptions become reality.

To begin, the tragic death of a Brazilian named Roberto Laudisio Curti in Australia story  continues its challenge with incorrect headlines.  For example, read the original headline:  21-Year-Old Brazilian Tasered To Death By Australian Police.”  That’s incorrect, yes?  Nope.  The autopsy results & cause of death have not been concluded.  Headlines are meant to entice readers, so clearly this article won’t make the same mistake?  Nope.  The article states in an opening lead, “That’s right: Laudisio Curti was tasered to death.”  The story made no bones about it and firmly convinced readers that a cause of death is known.  Yet, this is not true & thus the news organization had to make correct these libelous statements on April 12.

The damage was done and if you had read the original article, you might have concluded that the TASER ECD was the cause of death.  You would most likely then form an opinion about this issue.  Your perceptions – not based on fact or science – then become your reality. 

Now imagine an opinion poll at the end of that original story that asks, “Should the New South Wales Police be held accountable for this death?” When you read the uncorrected version, do you think that those incorrect words had any influence on the poll?  It did.

Even in today’s Daily Telegraph, the media incorrectly states, “Officers positioned a mannequin of Mr Curti’s body… where the fatal stun gun shot was fired.”  The fatal stun gun shot?  So much for the cause of death not determined yet.  That came, “Police in Taser death re-enactment after Brazilian man Roberto Laudisio Curti died in Sydney’s CBD.” Note the  “TASER death” use in the headline & other hyperlinked stories on that samepage.  Interestingly, there’s also no mention of the pepper spray use.

Pepper Spray? Do a Google search with these key words & you get a lot of results in 26 days since Mr. Curti’s March 18 death:

• Curti + TASER + Killed: 416,000 results

In 386 days since the death of Dominic Chiodo on March 18, 2012, there have been very few stories relative to Mr. Curti.  Last week, this story, Coroners Court probes death of a man after he was sprayed with capsicum by police, provoked some research on comparing TASER vs pepper spray bias.  Note the results:

• Dominic Chiodo + Capsicum + Killed: 515 results  (using pepper spray” vs. “capsicum” nets even less results: 246 results)

Why compare this to Dominic Chiodo? 

There are many similarities but what’s interesting is the bias when a death occurs involving a TASER ECD.  There is very little outcry when someone dies in custody when other products are used.  In fact, how many of you knew that police said they used pepper spray to try to subdue Mr. Curti?  Why aren’t the headlines “Pepper Spray Killed?” 

The interesting aspect to this comparison of these two similar situations is in the numbers:

“Curti” + “pepper spray” + “killed” gets 3,360 results vs 416,000 replacing “pepper spray” with “TASER.” 

So how did a story involving both pepper spray & TASER ECDs fail to mention the pepper spray in 99.9 percent of the stories?  How does the media continue to state TASER Kills when causes of death aren’t known?

This is certainly a case that makes you go, “Hmmmm.”

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