So who gets convicted in this case?

NuclearNed

Raconteur
May 18, 2001
7,882
380
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I've been sick for the past week, so I've had a whole lot of time at home to watch crime tv...

A man breaks into a woman's house, ties her up and rapes her. He then leaves the room and is out of sight for a while. Then he reenters the room, rapes her again, then leaves for good. During all this, the woman got a good look at the man's face. Also, there is good DNA evidence.

A while later, the man is arrested. His DNA matches that of the evidence perfectly, and also the woman is able to pick him out of a lineup.

The problem is that the man has an identical twin. Both men declare innocence. Also, neither man has a good alibi.

If all else is equal, will either man get convicted?
 

TheFamilyMan

Golden Member
Mar 18, 2003
1,198
1
71
Originally posted by: NuclearNed
I've been sick for the past week, so I've had a whole lot of time at home to watch crime tv...

A man breaks into a woman's house, ties her up and rapes her. He then leaves the room and is out of sight for a while. Then he reenters the room, rapes her again, then leaves for good. During all this, the woman got a good look at the man's face. Also, there is good DNA evidence.

A while later, the man is arrested. His DNA matches that of the evidence perfectly, and also the woman is able to pick him out of a lineup.

The problem is that the man has an identical twin. Both men declare innocence. Also, neither man has a good alibi.

If all else is equal, will either man get convicted?

Convict them both...your scenario states that she was raped a second time and you intone the same rapist re-entered the room. It could be logically argued that the second rape was performed by the second twin.
 

hypn0tik

Diamond Member
Jul 5, 2005
5,866
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Identical twins don't have the same DNA just as they wouldn't have the same fingerprints. I don't see what the problem is here...
 

BurnItDwn

Lifer
Oct 10, 1999
26,353
1,862
126
Fingerprints of identical twins are very similar, but they are not the same. They could dust for fingerprints and check to see which one of the twin's fingerprints are at the place.

If they can find fingerprints, then they will be able to convict the right man.
 

BrownTown

Diamond Member
Dec 1, 2005
5,314
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Originally posted by: hypn0tik
Identical twins don't have the same DNA just as they wouldn't have the same fingerprints. I don't see what the problem is here...

FAIL
 

Vonkhan

Diamond Member
Feb 27, 2003
8,198
0
71
Originally posted by: hypn0tik
Identical twins don't have the same DNA just as they wouldn't have the same fingerprints. I don't see what the problem is here...

problem is the OP watches too much TV instead of reading a good book :p
 

BurnItDwn

Lifer
Oct 10, 1999
26,353
1,862
126
Originally posted by: hypn0tik
Identical twins don't have the same DNA just as they wouldn't have the same fingerprints. I don't see what the problem is here...

They do have the same DNA.
Identical twins are formed by the splitting of an already fertilized egg, thus, 100% absolutely identical DNA.

But you are 100% correct about the fingerprints :)
 

dquan97

Lifer
Jul 9, 2002
12,010
3
0
the DNA of both people won't be exactly the same...there'll be some similarities, but not the same.
 

FoBoT

No Lifer
Apr 30, 2001
63,084
15
81
fobot.com
they should get some material evidence, like shoe print or clothing fibers and then check their wardrobes, both twins won't own identical clothing
 

Vette73

Lifer
Jul 5, 2000
21,503
9
0
Originally posted by: FoBoT
they should get some material evidence, like shoe print or clothing fibers and then check their wardrobes, both twins won't own identical clothing


Say they are both monks and do have the same clothes then what?
 

hypn0tik

Diamond Member
Jul 5, 2005
5,866
2
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Originally posted by: BrownTown
Originally posted by: hypn0tik
Identical twins don't have the same DNA just as they wouldn't have the same fingerprints. I don't see what the problem is here...

FAIL

Guess I did fail.

http://ask.yahoo.com/20010213.html

A search on "identical twins DNA" led us into a fascinating world of genetics, cloning, and the old nature vs nurture debate.

As we soon learned, identical twins, formed when one fertilized egg splits, are the only people in the world with identical DNA. Fraternal twins, on the other hand, are formed when two different eggs are fertilized. Genetically speaking, fraternal twins are no closer than normal siblings, sharing only about 50% of their genes.

Although identical twins have the same genotype, or DNA, they have different phenotypes, meaning that the same DNA is expressed in different ways.

Traits determined by phenotype, such as fingerprints and physical appearance, are the result of "the interaction of the individual?s genes and the developmental environment in the uterus." Thus, a DNA test can't determine the difference between identical twins, while a simple fingerprint can.
 

MrDudeMan

Lifer
Jan 15, 2001
15,069
94
91
Originally posted by: BurnItDwn
Originally posted by: hypn0tik
Identical twins don't have the same DNA just as they wouldn't have the same fingerprints. I don't see what the problem is here...

They do have the same DNA.
Identical twins are formed by the splitting of an already fertilized egg, thus, 100% absolutely identical DNA.

But you are 100% correct about the fingerprints :)

:thumbsup:
 

BurnItDwn

Lifer
Oct 10, 1999
26,353
1,862
126
Originally posted by: dquan97
the DNA of both people won't be exactly the same...there'll be some similarities, but not the same.

No, fraternal twins will be similar, just like with all brothers/sisters that have the same parents, but identical twins are defined as coming from the same fertilized egg. Meaning exactly the same DNA. 100% every single bit of DNA will be exactly the same.
 

D1gger

Diamond Member
Oct 3, 2004
5,411
2
76
I would think that without additional evidence, a good defence attorney would be able to create reasonable doubt for either one of the twins, so they would likely both walk, as no one could say with any certainty which one did it. Prosecutors would have to have another source of evidence (fibre, fingerprint, license plate, etc.) to identify the guilty party.
 

Vic

Elite Member
Jun 12, 2001
50,422
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IRL, they'd get one of the twins to rat on the other for an immunity deal.
 

hanoverphist

Diamond Member
Dec 7, 2006
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get the pics of the scene and have the CSI guy render a facial mark that one of the twins has out of the reflection on the hubcap on the VW across the street in the reflection of a mirror on the wall. then turn it into a hi res pic from a cell phone avi. problem solved.
 

MrDudeMan

Lifer
Jan 15, 2001
15,069
94
91
Originally posted by: hanoverphist
get the pics of the scene and have the CSI guy render a facial mark that one of the twins has out of the reflection on the hubcap on the VW across the street in the reflection of a mirror on the wall. then turn it into a hi res pic from a cell phone avi. problem solved.

That seems a little low-tech for CSI, but yeah that would work for sure. They would probably find a single skin cell in the sub-floor under the carpet three rooms away from the rape scene.
 

Alistar7

Lifer
May 13, 2002
11,978
0
0
Make both men have sex with the woman, she should be able to tell, if not just a good day for her and them.....
 

PingSpike

Lifer
Feb 25, 2004
21,758
603
126
The case would never go to trial. AFAIK, each case has to be tried individually. Reasonable doubt could easily be shown in each case. Our justice system assumes innocence, so whoever did it will go free.

This is why you should never mess with identical twins! Not only can one hold you while the other hits you, but they are immune to the law!
 

NuclearNed

Raconteur
May 18, 2001
7,882
380
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Originally posted by: TheFamilyMan
Originally posted by: NuclearNed
<snip>

Convict them both...your scenario states that she was raped a second time and you intone the same rapist re-entered the room. It could be logically argued that the second rape was performed by the second twin.

I doubt the justice system in its current form will allow both to be convicted.

One of the men is definitely a criminal.
Both of the men may be criminals.
One of the men may be innocent.
 

NuclearNed

Raconteur
May 18, 2001
7,882
380
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Originally posted by: FoBoT
they should get some material evidence, like shoe print or clothing fibers and then check their wardrobes, both twins won't own identical clothing

But what if this type of evidence can't be found?