I take your point about the forensic report being available to the defence. I think there was once a photocopy of a forensic report signed by ‘Elsie Nickolls’ shown on this site but whether that was merely a summary report rather than a more thorough report I am not sure. It may be that the defence was shown a less than comprehensive report and was satisfied with that.
Sherrard surely missed a trick in not calling Nickolls to testify. He was a big ‘name’ in criminal trials of that era and his confirmation of the negative connection between Hanratty and the car would have had a powerful effect on the jury I would imagine.
There remains the possibility of a clean-up by the killer which removed hair and fibre evidence but as you suggested this would have required a thorough vacuum clean of the car. In the circumstances this seems unlikely, not in line with the narrative of a panicked killer driving erratically. Then there is the problem of finding an extension cable to get the vacuum to the car before starting to hoover, most probably in poor light. Vacuum cleaners also make a lot of noise and would be likely to disturb anyone sleeping in the vicinity in the early hours of the morning. If this did happen then an accomplice seems likely to have been involved. And as I indicated earlier, an experienced forensic team can tell when a car is ‘too’ clean following a clean up operation.
Sherrard surely missed a trick in not calling Nickolls to testify. He was a big ‘name’ in criminal trials of that era and his confirmation of the negative connection between Hanratty and the car would have had a powerful effect on the jury I would imagine.
There remains the possibility of a clean-up by the killer which removed hair and fibre evidence but as you suggested this would have required a thorough vacuum clean of the car. In the circumstances this seems unlikely, not in line with the narrative of a panicked killer driving erratically. Then there is the problem of finding an extension cable to get the vacuum to the car before starting to hoover, most probably in poor light. Vacuum cleaners also make a lot of noise and would be likely to disturb anyone sleeping in the vicinity in the early hours of the morning. If this did happen then an accomplice seems likely to have been involved. And as I indicated earlier, an experienced forensic team can tell when a car is ‘too’ clean following a clean up operation.
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