Why did SOCO not use luminol when JB became a suspect?

[Roch]

Could luminol have been used at both Head Street and WHF, to detect blood in bathrooms? 

[Bubo bubo]

Could luminol have been used at both Head Street and WHF, to detect blood in bathrooms?

Because they knew he was innocent and would find nothing. Dare I say. They were going to frame him by other means.

[Hardy Boy]

Could luminol have been used at both Head Street and WHF, to detect blood in bathrooms?

It was probably too late, Luminol reacts to bleaches

[Hardy Boy]

It was probably too late, Luminol reacts to bleaches

I might stand corrected on this Roch, it is a bit contradictory, although it says it reacts, it could still possibly show blood after ten washes of bleach?  So i'm not 100 per cent

[Zoso]

Could luminol have been used at both Head Street and WHF, to detect blood in bathrooms?

Not really - too long.

[Roch]

Not really - too long.

Is there a time limit on it?

[Roch]

I might stand corrected on this Roch, it is a bit contradictory, although it says it reacts, it could still possibly show blood after ten washes of bleach?  So i'm not 100 per cent

I thought it could detect after significant washing, though I don't know how good luminol technology was in '85.

[Zoso]

Is there a time limit on it?

Bamber would have had plenty of time to clean up and the amount of blood left at his cottage would be minimal and no evidence of a crime.

[Zoso]

I might stand corrected on this Roch, it is a bit contradictory, although it says it reacts, it could still possibly show blood after ten washes of bleach?  So i'm not 100 per cent

How much blood is going to be at his house as compared to the CS? Any blood would be dry by the time his arrived home, it would be confined to the shower and washed away almost immediately.

[Roch]

Bamber would have had plenty of time to clean up and the amount of blood left at his cottage would be minimal and no evidence of a crime.

But that's not how luminol works.

[Roch]

How much blood is going to be at his house as compared to the CS? Any blood would be dry by the time his arrived home, it would be confined to the shower and washed away almost immediately.

So he went around the crime scene with Sheila and Nevill's blood on him, without depositing it anywhere; didn't get washed at the crime scene but got washed at home.

It may still be possible for luminol to work - but they didn't even try it.

[Roch]

Because they knew he was innocent and would find nothing. Dare I say. They were going to frame him by other means.

This is a possibility.  During police interviews, is Bamber questioned about his clothing on the night of the murders?

[Zoso]

So he went around the crime scene with Sheila and Nevill's blood on him, without depositing it anywhere; didn't get washed at the crime scene but got washed at home.

It may still be possible for luminol to work - but they didn't even try it.

How do we know he didn't deposit it anywhere? Same argument applies to Sheila, I don't see the point you are making? Plus I believe Luminol was a US tool, not used so much here (been watching too much Columbo  )

[Steve_uk]

This is a possibility.  During police interviews, is Bamber questioned about his clothing on the night of the murders?

This is brought up in Chapter 20 of Roger Wilkes' book Blood Relations. He's asked whether he wore gloves when firing the Anschütz to kill the rabbits. He answers: "No comment."

[Roch]

How do we know he didn't deposit it anywhere? Same argument applies to Sheila, I don't see the point you are making? Plus I believe Luminol was a US tool, not used so much here (been watching too much Columbo  )

Columbo is all about the well to do in LA. Rich and famous, high powered, privileged individuals. People at the forefront of science or talented musicians etc.
 
Kojack is far more grimey and gritty. A depressing New York full of hoods, drug addicts and sleaze.

Just a few thoughts!