Page 1 of 2: FORENSIC DOUBTS

med_00 · Credits: 3596 My Scrapbook

WHAT IS THE INVESTIGATION OF CHOICE FOR BLOOD GROUPING IN OLD BLOOD STAIN ON CLOTH:-
1.BENZIDINE TEST……………………..?
2.ACID DILUTION TEST……………?.
3.HAEMIN CRYSTAL TEST.
4.PRECIPITIN TEST.

anuj · Credits: 4672 My Scrapbook

4.PRECIPITIN TEST

dr_nidhi · Credits: 12996 My Scrapbook My Reading List 5 Books

precipitin test is used to detect species origin.
benzidine test and haemin crystal test can just identify whether the stain is blood or not.

so i think the answer should be acid dilution test.

manipalguy · Credits: 16015 My Scrapbook

yeah precipitin test is the right choice !!!!

dr_nidhi · Credits: 12996 My Scrapbook My Reading List 5 Books

can anyone give the reason why precipitin test is the right choice.

med_00 · Credits: 3596 My Scrapbook

BENZIDINE TESTS DETECTS OLD BLOOD STAINS.sO WHY NOT BENZIDINE TEST.WHERE IS ACID DILUTION TEST GIVEN--------ANY REFERNCES,PLZ SUPPORT UR ANS WITH REFERNCES.

shahimak · Credits: 78425 My Scrapbook My Reading List 262569 Books

Actually have seen a number of text books and journals...Precipitin test is used to discern whether blood of animal or human origin..not grouping.Someone plz find the ans with reference

rajurantac · Credits: 2071 My Scrapbook

I think

1. for blood stains(old or fresh)- benzidine test.

2. to detect species origin -precipitin test.

3. to detect bld grouping -absorption elution test.

Sumit Seth · Credits: 78425 My Scrapbook My Reading List 262569 Books

You r correct Rajurantac
For old Stain we do Acid Elution Test
this Q can be done by elimination also

With Regards
Dr.Sumit Seth
Author
Review Of Forensic Medicine

cma · Credits: 1011 My Scrapbook My Reading List 3 Books

test used 2 determine blood gr in stains r 1)absorption elution test 2)abs inhibition test 3) mixed agglutination test. ....as given in parikh

		Sign In New User? Sign Up Sign in to access your control panel and messenger!
				TechZone \| SpiderNevi \| HowTo? \| Scrapbook!