Who wrote this babble? Blood in the moderator would have fried so no conclusions could be drawn?
The babble is all mine in terms of the sentence above

The blood 'found' in the silencer was analysed based on blood serology. Unlike DNA it is susceptible to degradation and should never be exposed to heat which is likely to destroy the enzymes and proteins:
Conventional serological analysis"Analysis of the proteins, enzymes, and antigens present in the blood. These substances are more susceptible to degradation than DNA and this type of testing usually requires a "large" sample (quarter size) in good condition for optimal results. This type of testing is rarely statistically individualizing.
"Blood evidence must never be exposed to excessive heat or humidity. If possible, the bloodstained evidence should be refrigerated until it can be transported to the crime lab. The evidence should also be taken to the lab as soon as possible. The following are guidelines, listed in order of the author's preferences, for collecting and preserving blood evidence"
http://www.crime-scene-investigator.net/blood.htmlhttps://www.youtube.com/watch?v=-tJ7heDIqXU Did Malcolm Fletcher and John Hayward have the conversation ? &%+((£
Table showing the victims' blood, enzyme and protein results: ABO PGM EAP AK Hp
Nevill Bamber O PGM1+ EAP BA AK1 Hp2-1
June Bamber A PGM1+ EAP BA AK2-1 Hp2-1
Daniel Caffell O PGM2+1+ EAP B AK1 Hp2
Nicholas Caffell O PGM2+1+ EAP B AK1 Hp2
Sheila Caffell A PGM1+ EAP BA AK1 Hp2-1
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Blood In Silencer A Nil EAP BA AK1 Hp2-1
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Robert Boutflour A PGM1+ EAP BA AK1 Hp2-1
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ABO = Blood Group System
PGM = Phosphoglucomutase (Enzyme) Breaks down quickly outside the body hence blood in silencer was unable to produce a reading
EAP = Erythrocyte Acid Phosphatase (Enzyme)
AK = Adenylate Kinase (Enzyme)
HP = Haptoglobin (Protein)