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<p ALIGN="right"><font SIZE="4"><span style="font-family: Times New Roman, Arial; font-size: 8pt">Roger
L. Boyell, Forensic Analyst (Electronics)</span></font></p>
<font SIZE="4"><b>
<p ALIGN="CENTER">EXAMPLES OF FORENSIC ASSISTANCE</p>
</b></font>
<p ALIGN="CENTER">(No ranking or chronology is implied by this listing.)</p>
<font SIZE="4">
<p>1. Resolution of a patent licensing dispute among three companies centering
on electronic means for synchronizing radio broadcasting transmitters.</p>
<p>2. Analysis of a tape recorded succession of telephone conversations to show
they had been resequenced, i.e., edited, and was thus not an accurate
representation of the actual conversations as they occurred.</p>
<p>3. Investigation of an equipment fire requiring examination of electrical
circuitry and study of after-fire photographs to determine the origin of the
fire.</p>
<p>4. Empirical proof that a traffic radar could be influenced by an airport
surveillance radar even operating on another frequency.</p>
<p>5. Explanation of the effects on two-way radio communication when employed
inside metal buildings.</p>
<p>6. Debunking of a vehicle speeding accusation which was based on improper
interpretation of a traffic radar reading when used between two roadways.</p>
<p>7. Evidence that an breath alcohol analyzer's reading was affected by radio
interference.</p>
<p>8. Analysis of a tractor-trailer's on-board monitoring computer record to
prove that it was not exceeding the speed limit in a defined operating area.</p>
<p>9. Reconstruction of a traffic accident from roadway markings to determine
the proximate cause was just the opposite of the conclusion reached in
preliminary investigation.</p>
<p>10. Consultation on method of measuring acoustic attenuation between
buildings to evaluate whether a scream would have been heard.</p>
<p>11. Generation of demonstrative photographic evidence regarding visibility of
a certain traffic sign from a specific approach path.</p>
<p>12. Laboratory analysis of an FBI-produced tape recording and findings which
contradicted its initially believed authenticity.</p>
<p>13. Comparison of a novel computer-based means of processing video signals
with an alternate design, under an intellectual property dispute, showing that
independent engineering effort had been performed rather than imitation.</p>
<p>14. Determination of the extent to which a shipment of blank recording tape
was damaged in transit, on the basis of its measured sound recording
capabilities.</p>
<p>15. Analysis of a traffic citation based on what was found to be erroneous
operation of a traffic radar, resulting in the dismissal of a separate motor
vehicle charge for no probable cause.</p>
<p>16. Examination of surveillance recordings to verify/refute charges of
official misconduct in which the recordings were primary evidence.</p>
<p>17. Determination of errors in use of VASCAR as a speed-time-distance
computing instrument resulting from visual parallax.</p>
<p>18. Analysis of testimony regarding a traffic matter to elucidate witnesses'
inconsistencies.</p>
<p>19. Laboratory examination of recorded telephone conversations in light of
offeror's claims about how the recordings were prepared, to determine
acceptability as evidence for alleged drug distribution.</p>
<p>20. Reconstruction of accident scene on site, using sun shadows visible on
photographs of bloodspots and debris to locate vehicle impact point precisely.</p>
<p>21. Correction of speed and frequency response of surveillance tape
recordings in order to permit meaningful playback in court.</p>
<p>22. Preparation of one-party telephone recording, and tailoring to match a
previously supplied recording, as the basis for subsequent voice identification.</p>
<p>23. Examination of official accident report and physical roadway layout to
show that the driver of a vehicle emerging from a stopsign was not necessarily
at fault.</p>
<p>24. Experimental determination of the extent to which a breath analysis
device's accuracy is affected by cigar lighter fluid vapor.</p>
<p>25. Enhancement of original sound recordings to expose potentially damaging
transcript errors.</p>
<p>26. Detection of the mis-settings of fire department radios giving rise to
inadequate communication in a severe stress environment in which firefighters
were killed, through transcript review and dissection of fire-damaged equipment.</p>
<p>27. Determination that a hospital�s complex radio/telephone paging system
was not malfunctioning when on one occasion one of its 500 pocket pagers
displayed digits not corresponding to the proper calling telephone extension.</p>
<p>28. Enhancement of a noisy surreptitious tape recording to reveal statements
quite different from those transcribed, in particular whether the answers to
critical questions were "yeah" or "naah", and just which
part of his body she touched.</p>
<p>29. Investigation of successive generations of copies of a tape-recorded
police interview to prove that artifacts exhibited were imposed during the
copying process, but that the original recording was correct and complete.</p>
<p>30. Analysis of the circumstances giving rise to a serious electric shock in
part due to defective wiring set up by a user in order to provide an
unauthorized temporary modification to a properly manufactured device.</p>
<p>31. Reconstruction of operation of a traffic radar at a specific location to
suggest why misreadings would occur there.</p>
<p>32. Expert comparison of patent claims for a battery condition meter with
that of an allegedly infringing competitor.</p>
<p>33. Determination of which of two different conversations on a telephone tape
recording was last made based on the start/stop signatures left on the tape by
the recorder�s operation.</p>
<p>34. Analysis of the audibility of an emergency vehicle siren with respect to
other sounds presented to the operator of another motor vehicle, by field
measurement of acoustic levels as a function of listener location.</p>
<p>35. Testimony about the inferences to be drawn from the character of a short
gap in a long tape recording which happened to correspond to the portion of a
public meeting whose precise content later became under dispute.</p>
<p>36. Discovery of an improper wiring alteration combined with an internal
defect that caused a hot-grease chicken frying machine to shock its operator.</p>
<p>37. Analysis of a disturbingly loud noise in a long-distance telephone
connection by one party�s cordless phone locally sounding its low-battery
alert tone which was simultaneously transmitted to the other party�s
instrument.</p>
<p>38. Investigation of inaccuracies in use of a certain state police traffic
lidar (lightwave radar) justifying the state�s dropping of a lengthy case
before trial.</p>
<p>39. Determination of how a control system released an overhead door to close
on a forklift operator just as he was driving through. Also found an inoperative
hold-open safety device for a double swinging door which had abruptly closed on
a pedestrian.</p>
<p>40. Testimony about the accuracy with which wireless/cellular telephones can
be localized from retained fraud or billing records showing the antenna sites
accessed.</p>
<p>41. Analysis of an event wherein a computer-based "911" call center
failed to respond correctly to an incoming emergency call due to a computer
program error.</p>
<p>42. Evaluation of industrial electrical machinery post-incident in several
cases for which insurance carriers required confirmation or refutation of the
insured�s claims.</p>
<p>43. Enhancement of several noisy tape recordings to reveal otherwise
inaudible conversations, to determine who said what, and to validate a
questioned transcript.</p>
<p>44. Assistance with reverse engineering of a microprocessor-based
point-of-sale machine to expose its circuitry, algorithms, and logic for
scrutiny in a patent case. Required study of magnetic card reading technology
along with formulation of custom test cards which revealed suspected intricacies
of the internal calculations.</p>
<p>45. Testimony about potential interference from a proposed wireless/cellular
transmitting site in light of some existing and nearby sensitive receiving
apparatus.</p>
</font>
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<p align="center"><span style="font-family: Times New Roman, Arial; font-size: 12pt"><u><font face="Times New Roman" size="4"><a href="technical_background.htm">Technical Background
and Forensic Experience<br>
</a><a href="communication_skills.htm">Communication Skills
and Industry Qualifications<br>
</a></font><a href="documentation_of_credentials.htm"><font face="Times New Roman" size="4">Documentation of Credentials<br>
</font></a><font face="Times New Roman" size="4"><a href="rate_structure.htm">Rate Structure
and Operating Principles<br>
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</font></span></a></u><span style="font-family: Times New Roman, Arial; font-size: 12pt"><u><a href="example_forensic_assistance.htm"><font face="Times New Roman" size="4">Examples
of Forensic Assistance</font></a></u></span></p>
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