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Digital evidence can often be modified with ease so whether it is gathered from a computer, a cell phone, a flash drive or any other device, digital forensic investigators must handle evidence in a manner that ensures their conclusions are based upon factual evidence and their own personal expert knowledge. Is there evidence of a crime? Can an alibi be confirmed? What about the intent to commit a crime? Is there a document that needs authentication? What about identifying a stalker, a perpetrator of industrial espionage, or a threat to national security? Join us to hear cutting edge cyber crime investigator Dave Townsend, the expert who examined computers belonging to two high profile cases, one from Scott Peterson's double homicide case and the other from the case involving the allegations of child exploitation charged against Michael Jackson.