Originally posted by etenguy
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When commentators talk of the 'unreliable nature' of the accuracy of estimating TOD, they are talking of estimating a precise TOD and the PMI involved.
As a result, you often get a window of time, but this window of time is deemed to be a useful tool in the resolution of crime, otherwise why bother.
To illustrate:
Here is an article from the Los Angeles discussing the OJ Simpson case:
Delay in Notifying Coroner Hurt Simpson Case Probe : Investigation: Efforts to pinpoint time of deaths were hampered, tough LAPD policy was violated. - Los Angeles Times (latimes.com)
In this article, United States forensic people state:
Indeed, Los Angeles Deputy Medical Examiner Irwin L. Golden testified at Simpson’s preliminary hearing in July that the murders were committed “somewhere between 9 (p.m.) and midnight,” and he admitted under cross-examination that the standard measurements upon which he based his decision would have been more accurate if taken sooner.
“The farther away you go from the time of death, the more inaccurate you become,” said Werner U. Spitz, former Wayne County, Mich., medical examiner and author of a widely used forensic pathology textbook.
In other words, they were not prepared to give a precise estimated TOD and instead they gave a window of time, and they believe it is possible to give an accurate estimated window of time but more so with a very short PMI.
On the John Richardson thread, the notion that all TOD estimates are unreliable and should be ignored was put forward. Quite clearly, this is false.
That said, I have no desire to go 'round in circles with anyone, and so in the event you or anyone else thinks medical people being called in to estimate a TOD is a waste of time because it is unreliable by nature, or the forensic type people in the above article are wrong when they tell you: the farther away you go from the time of death, the more inaccurate you become; then you're entitled to your opinion. By extension, they are telling you it is possible to give an accurate window of time and the shorter the PMI the more accurate it is likely to be.
In terms of how this relates to Mary, the most experienced doctor of them all, Dr Phillips, was reluctant to nail down a time, and gave between 2am and 8am. That is a pretty wide timeframe and is an acknowledgement that in Mary's case it was difficult to estimate the TOD, in part due to the passage of time.
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