Imo, if the blood in the back of EB's car was considered to have been deposited when 3 hours or so old, then it didn't have time to degrade. It had the appearance of 3 hours or so old when found 3 days after EB was missing. How could the blood in this car not have degraded in any way in three days?
If the blood under the floor may was still liquid, then I'm with this more educated and better trained biologist - it was preserved in some way or it was in fact fresh. A likely scenario imo, is that it was placed there in the wee hours of Friday morning. This would explain smears with only one direction - a mistake.
The above scenario you have described - that the blood was relatively fresh when the car was discovered - cannot be ruled out and is very alive as a possibility given the information Raybould recorded in his note for the November 22, 1990 meeting. There is definitely ambiguity in how one could interpret the note and, in addition, the meeting lasted roughly an hour and a half but Raybould's notes cover about 10 minutes' worth of discussion; who knows what else may have been discussed? For now, we have Raybould's record and that's it; given what Raybould did record and how much it torpedoed the police and Crown theory, one could surmise that even more damaging information might have been imparted to him although what was recorded was damaging enough.
As for note note itself, it reads in part as follows:
a) if out 2-3 days she would decompose and blood would decompose this would preclude blood loss as seen;
This would suggest that the blood was not decomposed and therefore it could have been fresh at the time the car was found; this would also suggest EB was alive well after Tuesday night.
b) if decomposed – the odour would be noticeable as decomposed fluids would enter fabric and remain
This would suggest that when the body was placed in the car it was not decomposed per the absence of decomposition odor. This could mean that EB was placed in the car soon after being injured - completely contrary to the police and Crown theory - and removed soon afterwards; or, that she could have been killed closer to Friday, then put in her car, and by the time the car was found the body had been removed it had never had time to decompose.
c) if body decomposing then we would not see smears that are red – they would be reddy/blue
The smears were red. This would suggest that when the body was placed in the car
the blood hadn't begun decomposing either, which blood does. But this could have several interpretations. Were the CFS experts saying that from the colour of the bloodstains as observed on Friday they could conclude that, being red in colour, the blood was fresh
at the time the stains were produced, i.e. as early as Tuesday night? Or, were they suggesting that the colour of the bloodstains, which were red at the time the car was found, meant that only a person who had been injured
within several hours of the car being found , i.e. as late as Thursday night/Friday morning, had been placed in the car. Again, basing my analysis only on the note either of these scenarios is possible.
As for the idea of blood aging, we also have the following quote:
As bloodstains increase in age, they progress through a series of color changes from red to reddish brown to green and eventually to dark brown and black (Figures 9.3a and b). This change of color is attributable to the drying process and to the loss of oxygen from the oxyhemoglobin in the red cells on exposure to air. Exposure to the sun will hasten the darkening process. A particularly warm and humid environment and the presence of bacteria and other microorganisms during the decomposition process will also affect the sequence and duration of color changes in bloodstains. Post mortem growth of fungus can produce unusual changes in blood as seen in Figures 9.4a and b. This was a scene where the body had begun the decomposition process and the growth of the hairlike fungus was determined to be Aspergillus sp. Wet bloodstains that were originally red will usually progress to red brown and then go to green within 24 h at a warm temperature as a result of the growth of bacteria and the decomposition process. [James, Stuart H. et al. Principles of Bloodstain Pattern Analysis: Theory and Practice. CRC Press, 2005.]
Based on the passage above that I have bolded, one would have a hard time excluding the possibility that EB was alive after Tuesday given the evidence in the car as recorded in Raybould's note. Had EB been killed on Tuesday by 8:00 PM, by the time the car was found on Friday about 66 hours would have elapsed, which is a long time for blood to be drying and decomposing.
Thoughts?