Forensic Authenticity Analyses of Audio/Video Evidence tampering, falsification, trustworthy, true original / recording is continuous and unalted / consistent with statements or testimony of witness or recordist / "forensic authenticity analysis" "tampering" "fabrication" "fabricate" "fake" "falsify" "falsification" "anomaly" "trustworthy" "alter" "add" "delete" "record" "overrecord" "obfuscate" "distort" "analyze" "wiretap" "authentic" "authenticity"