Short Bio on Norman I. Perle
National Audio Video Forensic Laboratory



Briefly, I have been in business approximately 20+ years working with recorded evidence. I have testified in more than 100 trials as an accepted Expert Witness in all aspects of recorded evidence. My laboratory has the most recent and advanced computerized analysis and processing instruments for audio and video available.


One of the "high profile" cases in which I was involved was the RODNEY KING Arrest Trial in Simi Valley, California. I was the only private facility which the Court had ordered the original 8mm Holiday video released to. My work in that case, among other services provided, involved extracting audio from the video, filtering the helicopter noise out in order to obtain intelligible words and sounds of the arrest. This includes what the Police Officers were saying as well as providing the Defense Team with Video Enhancements.

I was the Video Imaging Expert for the defense in the LOS ANGELES RIOT - Trucker Denny Case. My complete Case Roster includes such cases as the DELOREAN CASE and U.S.A. v. BERNARBE- RAMEREZ (Camarena Drug Agent Murder Case). Another noteworthy case I performed services on was a video recording of Compton California Police Officer involved in what one would describe as a violent arrest. My initial evaluation and analysis indicated the video tape was "less than authentic", in that it contained significant signs suggestive of falsification. Two days after this determination was made the person from whom the video originated stated, on a television news report, that the video tape had, in fact, been partially erased. This was only one of the "problems" with this video. A "footnote" to his episode was that at least 3 Los Angeles Television Stations bought the EXCLUSIVE RIGHTS to this video!

Additionally, I was the Audio Expert hired by the City of Los Angeles in defense of a City Councilman accused of sexual harassment. A tape recording, presented as evidence at trial by the victim, was shown to be falsified. The case against the City Councilman was dismissed. The case prove-up disclosed that the recording was on a 30 minute per side Micro-cassette, was only recorded for 6+ minutes, and the balance of the recording was an erasure. Within the 6+ minutes there were 64 re-starts of a recorder. I use the phrase "...re-starts of a recorder" because I presented evidence of the use of, at least, three different tape recorder signatures.


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