Bob Bashara passed a privately administered polygraph examination Wednesday night, indicating he had no involvement with his wife’s murder, his defense attorney David Griem said this morning.
Griem said his polygraph examiner — whose name he would not disclose — told him “that in his opinion, Bob did not have anything with the death of his wife.”
Griem said the second test was given to counter reports that Bashara failed a polygraph performed for the Grosse Pointe Park Police.
“If the prosecution wants to have a battle of polygraph examiners, we will,” said Griem, adding that he does not believe the person who performed the test for police is licensed by the state of Michigan.
The conflicting results underscore why such tests are almost never used in court, Griem said.
“There’s a reason they’re not admissible,” he said. “The results are often more subjective than objective.”
Source: Detroit Free Press
Then why do them? You end up arguing over nonsense.[Polygraph]
A National Academies report said this:
Almost a century of research in scientific psychology and physiology provides little basis for the expectation that a polygraph test could have extremely high accuracy.
The theoretical rationale for the polygraph is quite weak…
Research on the polygraph has not progressed over time in the manner of a typical scientific field. It has not accumulated knowledge or strengthened its scientific underpinnings in any significant manner.
And concluded it was not an appropriate tool for screening individuals who may post threats to national security. It’s also appropriate in the murder case above for the same reasons.