Fiber Identification and Analysis for Conservation
This workshop covers basic polarized light microscopy (PLM) and methods of sampling, characterization and identification mammalian hair and selected natural and synthetic fibers. Emphasis will be placed on hands-on exercises involving sample preparation and specimen manipulation as well as the characterization and identification of real life specimens.
This workshop will be held at the annual AIC Conference in Houston, TX on May 29-30, 2018.
Nicholas Petraco Sr., BS Analytical Chemistry, MS Forensic Science, very extensive post-degree university coursework in art, art history and heritage conservation, Fellow of New York Microscopical Society (NYMS), Fellow of American Academy of Forensic Science, Diplomat of the American Board of Criminalistics, Mr. Petraco served in the New York City Police Department 1968 – 1990, as Police Laboratory detective/criminalist, and senior trace evidence forensic microscopist from May 1982 until April 1990. As an independent consultant Mr. Petraco has aided hundreds of investigations since 1993, and since 1999 has been designated Technical Leader in Criminalists for NYPD’s Forensic Investigation division. Mr. Petraco has advised or joined diverse art investigations, has advised or joined thousands of prosecutor and defense attorney death investigations, and he has given civil or criminal court expert testimony in over 500 trials.
In forensics literature Mr. Petraco is the author or co-author of more than 100 journal articles and notes, CD’s, 9 book chapters, and 5 books. Mr. Petraco lectures and instructs very often on the use of light microscopy, especially stereomicroscopy and polarized light microscopies, in identifying paint pigments, binders and finishes, synthetic and natural fibers and hair, and diverse other materials of interest. On March 26, 2007, he was promoted to Assistant Professor and granted a life’s work, background and experience equivalent to PhD waiver by CUNY Committee on Staff and Administration. Professor Petraco is a member of the CUNY graduate center’s PhD committee for forensic science, and he has taught microscopy, micro-chemical and instrumental analysis as well as forensic science to forensic scientists, art conservators and others at John Jay College of Criminal Justice, CUNY, the American Museum of Natural History in NYC for NYMS, at the FBI academy in Virginia, at NYU’s Institute of Fine Arts, and at other centers and institutions.