Electron Microscopy in Forensic, Occupational, and Environmental Health Sciences Abteilung für Arbeitsnachweis and all too frequently they January 2007 A and all too frequently they have been illustrated by artificially contrived laboratory experiments bearing little relationship to the outside world The meeting was attended by about 450 scientists from 45 different nations Exchange of information on particulate identification and techniques for analyzing new unusual samples has been difficult between the three disciplines It is virtually certain that this effort will also interest other electron microscopists in some novel scientific problems with criminal and societal relevance