The alerts have only been corroborated in respect of the hire car and the old blood behind the sofa; the necessary criteria to corroborate anything else as specified by Martin Grime didn't happen.
SnipThe interpretation of any alert is given when the dogs recognize a specific odour as a result of a response to the behaviour for which they were trained. This response must then be submitted to a forensic examination in order to draw conclusions.
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The dogs' alerts are to be considered as an area of interest or possible testing. When specific and reliable this can only be measured for confirmation.
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Every alert can be subject to interpretation, it has to be confirmed.
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Once the alert has been given by the dog, it is up to the investigator/forensic scientist to locate, identify and scientifically provide the evidence of DNA etc;
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Forensic confirmation and specialized investigation methods will determine the reasons and the suspicions. In order to undoubtedly affirm there must be a confirmation of the alert signals made by the dog.
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They find, however, and give the alert for dried blood from a live human being.
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