Three Abstracts of Human Studies On TASER Safety to be Presented At Heart Rhythm Society's 29th Annual Scientific Sessions

Studies Find TASER Electronic Control Devices Have No Effect On Human Heart or Pacemakers; Media-linked Arrest-related Deaths Not Caused by Electrical Stimulation


SCOTTSDALE, Ariz., May 15, 2008 (PRIME NEWSWIRE) -- TASER International, Inc. (Nasdaq:TASR), a market leader in advanced electronic control devices, announced that three abstracts reporting on human testing on the safety of TASER(r) electronic control devices (ECDs) will be presented at Heart Rhythm 2008 on May 15-16, 2008. Heart Rhythm 2008, the Heart Rhythm Society's 29th Annual Scientific Sessions, is being held in San Francisco at the Moscone Center, during May 14-17, 2008. Heart Rhythm is the premier conference on cardiac arrhythmias offering comprehensive coverage of the subjects that matter most to heart rhythm professionals.

The three studies all involved human subjects and produced the following general results:


 * Contrary to speculation that an electronic control device
   could induce ventricular fibrillation, the rhythm found in
   media-linked arrest-related deaths was primarily asystole which
   is associated with drug overdoses and cannot be induced with
   electrical stimulation;

 * There was no interference with pacemakers and implantable
   cardioverter defibrillators from TASER ECDs; and,

 * Real time ultrasound showed that even when electronic control
   device probes are placed across the heart, the ECD electrical
   pulses have no effect on the human heart. This is in contrast
   with the result occasionally seen in research using small pigs,
   which have important physiological differences that make their
   cardiovascular system significantly more sensitive to electricity
   than in humans.

The three abstracts reporting data from human studies looking at the safety of TASER electronic control devices are:

(Thursday May 15, 2008) Presenting Rhythm in Sudden Custodial Deaths after Use of TASER(r) Electronic Control Device.


 Charles Swerdlow, MD, FHRS, Mark W. Kroll, PhD, FHRS, Howard
 Williams, Mazda Biria, MD, Dhanunjaya Lakkireddy, MD and
 Patrick J. Tchou, MD. Cedars-Sinai Medical Center, Los Angeles,
 CA, University of Minnesota, Minneapolis, MN, San Marcos Police
 Department, San Marcos, TX, University of Kansas Medical Center,
 Kansas City, KS, Cleveland Clinic, Cleveland, OH.

(Friday May 16, 2008) Can Electrical-Conductive Weapons (TASER(r) Electronic Control Devices) alter the functional integrity of pacemakers and defibrillators and cause rapid myocardial capture?


 Dhanunjaya R. Lakkireddy, MD, Mazda Biria, MD, Esam Baryun, MD,
 Loren Berenbom, MD, Rhea Pimentel, MD, Martin P. Emert, MD, Kevin
 Kreighbaum, RN, Mark W. Kroll, PhD and Atul Verma, MD. Mid America
 Cardiology @ University of Kansas Hospital, Kansas City, KS,
 University of Minnesota, Minneapolis, MN, Southlake Regional
 Health Center, Toronto, ON, Canada.

(Friday May 16, 2008) Echocardiographic Evaluation of Human Transcutaneous TASER(r) Application Along the Cardiac Axis.


 Jeffrey D. Ho, MD, Donald M. Dawes, MD, Robert F. Reardon, MD,
 Anne L. Lapine, MD, Jeremy D. Olsen, MD, Benjamin J. Dolan, BA and
 James R. Miner, MD. Hennepin County Medical Center, Minneapolis,
 MN, Lompoc District Hospital, Lompoc, CA.

For more information about Heart Rhythm 2008, please visit: http://www.hrsonline.org/Sessions/HR2008/Index.cfm

About TASER International, Inc.

TASER International's products protect life. TASER provides advanced Electronic Control Devices (ECDs) for use in the law enforcement, medical, military, corrections, professional security, and personal protection markets. TASER devices use proprietary technology to incapacitate dangerous, combative, or high-risk subjects who pose a risk to law enforcement officers, innocent citizens, or themselves in a manner that is generally recognized as a safer alternative to other uses of force. For more information please call TASER International at (800) 978-2737 or visit our website at www.TASER.com.

The TASER International logo is available at http://www.primenewswire.com/newsroom/prs/?pkgid=2931

Note to Investors

This press release contains forward-looking statements within the meaning of Section 27A of the Securities Act of 1933, as amended (the "Securities Act"), and Section 21E of the Securities Exchange Act of 1934, as amended (the "Exchange Act"), including statements, without limitation, regarding our expectations, beliefs, intentions or strategies regarding the future. We intend that such forward-looking statements be subject to the safe-harbor provided by the Private Securities Litigation Reform Act of 1995. The forward-looking information is based upon current information and expectations regarding TASER International. These estimates and statements speak only as of the date on which they are made, are not guarantees of future performance, and involve certain risks, uncertainties and assumptions that are difficult to predict. Therefore, actual outcomes and results could materially differ from what is expressed, implied, or forecasted in such forward-looking statements.

TASER International assumes no obligation to update the information contained in this press release. These statements are qualified by important factors that could cause our actual results to differ materially from those reflected by the forward-looking statements. Such factors include but are not limited to: (1) market acceptance of our products; (2) our ability to establish and expand direct and indirect distribution channels; (3) our ability to attract and retain the endorsement of key opinion-leaders in the law enforcement community; (4) the level of product technology and price competition for our products; (5) the degree and rate of growth of the markets in which we compete and the accompanying demand for our products; (6) risks associated with rapid technological change and new product introductions; (7) competition; (8) litigation including lawsuits resulting from alleged product related injuries and death; (9) media publicity concerning allegations of deaths and injuries occurring after use of the TASER device and the negative effect this publicity could have on our sales; (10) TASER device tests and reports; (11) product quality; (12) implementation of manufacturing automation; (13) potential fluctuations in our quarterly operating results; (14) financial and budgetary constraints of prospects and customers; (15) order delays; (16) dependence upon sole and limited source suppliers; (17) negative reports concerning the TASER device; (18) fluctuations in component pricing; (19) government regulations and inquiries; (20) dependence upon key employees and our ability to retain employees; (21) execution and implementation risks of new technology; (22) ramping manufacturing production to meet demand; (23) medical and safety studies; (24) field test results; and (25) other factors detailed in our filings with the Securities and Exchange Commission, including, without limitation, those factors detailed in the Company's Annual Report on Form 10-K and its Form 10-Qs.

The statements made herein are independent statements of TASER International. The inclusion of any third parties does not represent an endorsement of any TASER International products or services by any such third parties.



            

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