After a judge, on two occasions refused to qualify the accuser as a competent witness (she had the mental capacity of a seven or eight-year-old), and the defendant refused to confess, the police took a blanket from his garage and took it to the Santa Clara County Crime Laboratory where an analyst looked for but couldn’t find any traces of semen. Later that day, San Jose detective Matthew Christian prepared a phony crime lab report in which a nonexistent DNA analyst with the lab named Rebecca Roberts identified semen on the blanket as Kerkeles’. The detective dated the report the day he seized the blanket. Since it takes months for DNA evidence to be processed, this itself revealed the document and the identification were bogus.
Approximately 400 accredited forensic science laboratories operate in the United States. Crime Lab Report circulation is expected to reach 200 laboratories by the end of 2015.
Crime Lab Report - DocumentCloud
Most often lawyers obtain a copy of the prosecution's crime laboratory report andthat's it. Never, never, never again litigate a forensic case without getting all ofthe laboratory bench notes. Here's what this is all about. One of the most basicrequirements for proper scientific procedure is for the technician to thoroughly documentevery single thing that happens to the evidence. You might not know it, but when a pieceof evidence arrives at the lab, a file is opened and a notation is made, then, each andevery thing that happens to that piece of evidence is written down in the file as well (orat least should be if proper and accepted scientific practices are followed...hint, hint).