UMC CT SURGERY

573 884 0437

04/10 '01 15:06 NO.978

01

f'iij;. University

1m Physicians
'Ii<~'ff'

Department of Surgery

Division ofCardiothoradc Surgery
Research Section
DC1l900
OneHospital Drive

Columbia, MISSQUrI 65212

AprillD,2DOI

(573) 882·416Il
FAX [573]884=0437

Riek Smith
President
Tascr International, Inc.
7339 East Evans Road
Scottsdale, Arizona 85260

Dear Mr. Smith,
In response to your inquiry about the effects of discharging two Tasers simultaneously
into an animal, I reviewed the data from the study we performed last year, This study was
detailed in an abstract and presentation to the Annual International Conference of the IEEE
Engineering in Medicine and Biology Society.
I found that in 3 of the 5 animals studied, we delivered the discharges of two Advanced
Tasers simultaneously a total of 10 times. These dogs weighed between 55 and 62 pounds, and
the full power Advanced Tasers were used. We observed no episodes of ventricular fibrillation
in these 10 episodes, which were all delivered to the chest wall of the animals,
Our failure to induce ventricular fibrillation in these relatively small experimental
animals suggests that a similar discharge into an adult human would also be unlikely to induce
ventricular fibrillation.
If you have any further questions, please let me know.

Sincerely,

W7"- c: 7. £lJ

Wayne C. Mcfranicl, Ph.D.
Research Assistant Professor