Third Paragraph:-
"However, before undertaking such examination it is the usual practice, as in this case, to submit the items to the forensic Science laboratory, to make an initial examination as chemicals involved in any fingerprint treatment may have an adverse effect on Laboratory examination i.e. blood grouping etc"...
Lets get the facts right:-
Silencer (SBJ/1) sent to the lab' to be provisionally examined on 13th August 1985, under Lab' item number 22
A silencer (as per aforementioned report) exposed to super-glue treatment, on 23rd August 1985...
Silencer (DB/1) sent to the Lab' on 30th August 1985, under Lab' item number 23, inside which was found crucial flake of blood that produced blood group activity, A, EAP BA, AK1 and HP 2-1...
Silencer (DRB/1) sent to the Lab' on 20 / 26th September 1985...
Not to be overlooked, is that any blood group evidence, (A, EAP BA, AK1 and HP 2-1) was not obtained, until after the super-glue treatment (23rd August 1985) had been carried out on the silencer, not beforehand...