Searching DNA For Relatives Raises Concerns 199
An anonymous reader calls our attention to California's familial searching policy, which looks for genetic ties between culprits and kin. The technique has come to the fore in the last few years, after a Colorado prosecutor pushed the FBI to relax its rules on cross-state searches. "Los Angeles Police Department investigators want to search the state's DNA database again — not for exact matches but for any profiles similar enough to belong to a parent or sibling. The hope is that one of those family members might lead detectives to the killer. This strategy, pioneered in Britain, is poised to become an important crime-fighting tool in the United States. The Los Angeles case will mark the first major use of California's newly approved familial searching policy, the most far-reaching in the nation."
There goes the 5th again (Score:5, Interesting)
Re:DNA evidence 'planting'? (Score:3, Interesting)
Splash some body fluids here, drop some hair there, and smear some skin cells at a strategic location, and voila "we have DNA evidence that places the defendant at the scene of the crime."
Congratulations on stumbling on the plot from GATTACA [imdb.com]. But your +n insightful is deserved because of the twist--although I've heard that prostitutes sell used condoms for this very reason. I can't find any links on the web to this effect so maybe its simply a urban legend. Hopefully defense attorneys with a modicum of intelligence will figure out that they can use planted DNA evidence as a defense.
Re:DNA evidence 'planting'? (Score:3, Interesting)
P.S. Is this the real reason some people want a genetically identical clone -- so they can blame all the rapes and murders they commit on the clone?
tangent (Score:5, Interesting)
anyone remember that csi episode about the chimera?
incredibly rare, but sometimes two fraternal twins will fuse while still blastocysts. so the dna of two seperate individuals form different organ lines in one individual. so your blood and kidneys and stomach might be from one person, while your brain, skin and lungs might be from another. most chimeras go through life never knowing what they are, but every once in awhile, a blood test reveals that, for example, a mother isn't even the mother of her own children (her womb is from a nonexistent twin):
http://en.wikipedia.org/wiki/Lydia_Fairchild [wikipedia.org]
anyway, in csi, the aberation was used to good effect: the killer knew he would get away with the crimes because his dna from the crime scene would not match the dna from his lab tests. but of course, the dna would indicate the killer was a brother of the prime suspect, because half the dna would match his phantom brother (which puts a twist on the subject of this story: if relative dna banks enjoy common use, a lot more chimeras out there are going to come to light)
most of the episode the csi investigators run after one brother of the suspect after another, in a fruitless red herring chase to find the dna of a brother who did not exist, except inside that of the killer
http://www.csifiles.com/reviews/miami/bloodlines.shtml [csifiles.com]
Re:There goes the 5th again (Score:4, Interesting)
.
You are thinking of the old notion that you can't be forced to testify against your spouse. "The two become one."
But "to testify" means "to be cross-examined."
It is about what you can be forced to say on the stand, not about what was discovered in a forensic examination of your hair, blood, fingerprints and so on.
The privilege against self-incrimination is fundamentally a defense against the use of psychological manipulation, extortion, bribery and torture to extract a confession.
Just a reminder... (Score:5, Interesting)
Now California police also reserve the right to take DNA from anyone they arrest for any reason. Which means if they can ever make the process an order of magnitude cheaper and faster, they could assemble a very large database very quickly with just the laws already on the books.
Re:DNA evidence 'planting'? (Score:3, Interesting)
Congratulations on stumbling on the plot from GATTACA.
There was also an episode of Law & Order where a vengeful woman hires a prostitute to get a condom full of semen in order to frame a man for murder.
Re:Privacy concerns, yes (Score:3, Interesting)
What happens when 23andme.com makes a Facebook app that lets you find other people on Facebook to friend based on how close your genetic profiles match, or certain traits you share? It's more likely than you think, and I say this as someone who uses Facebook AND has had a genetic profile done through 23andme.com.
Re:There goes the 5th again (Score:4, Interesting)
...the usual disclaimers, IANAL, etc...
Just to be specific, with some examples:
Scenario #1: Mobster husband coming home from a hard day's "work"
Hubby: Boy, Honey! That was a rough day! Do you have any idea how hard it is to chop up a guy with a Ginsu knife? We never thought Tony Da Rat would fit in that suitcase!
The wife can't testify or be made to testify about Tony Da Rat's tragically funny disposal. Her husband related it to her (assuming no one else was around) as part of the marital confidential communication.
Scenario #2: Wife greets Mobster Hubby after hard day's work
Wife: Awww...honey. Looks like you had a rough day. Let me wash that bloody shirt. What do you want me to do with the head in the bowling bag?
The wife canbe made to testify about the bloody shirt, the head in the bag, or anything else she directly sees, hears, touches, etc.
The point is that it's not her privilege or choice...it's her husband's. He can refuse to let her testify about confidential communication--she can't just go forth and start spouting it off...not if it (or any subsequent evidence) is to be used in court.
Re:Seriously though, what about adopted kids? (Score:5, Interesting)
Re:Privacy concerns, yes (Score:3, Interesting)
because you want to date your cousin? or because you want to find people who are susceptible to the same diseases as you?
genetic profiles don't seem very useful for social networking. they don't describe personality traits. at most you might be able to find people who share the same mental health issues as you (e.g. ADHD/ADD, bipolarism, schizophrenia, Asperger syndrome, etc.), but it wouldn't be much help in finding friends or potential dates.
something like a personality profile generated by user surveys would be much more useful. there's no gene that's responsible for making someone like football/horror movies/snowboarding/sci-fi/Chuck Palahniuk/Chinese food/rock climbing/etc. and there isn't even a specific gene that causes people to be artistic/creative, intelligent, kind, etc. so what kind of traits would you be able to match using genetic profiles? risk of heart disease or prostate cancer?
and if you're looking for romantic relationships, finding someone who closely matches your genetic profile is a bad idea. there's a reason why inbreeding is taboo. if anything, you'd want someone who's MHC (major histocompatibility complex) genes are very different from you. that way your offspring will inherent a more diverse set of MHC genes, giving them a more robust immune system.
Re:Seriously though, what about adopted kids? (Score:3, Interesting)
I think the technology is there for the government to take genetic samples from everyone in the U.S. armed forces, and thereby build a database in which they could match any found genetic material by gene clade, and describe your relationship, and triangulate your placement in the larger family tree, with a reasonable degree of certainty.
More simply put, a hair or skin flake on the ground could tell them who your brother, cousin, second cousin, uncle, all in different branches of your family, are. With that information it wouldn't be hard to find you.
Really, I'd be more surprised to find out definitively that this wasn't already in place.
Anyway, I feel a bit like a nutter saying it, but with enough computing power, we already have algorithms that do almost, if not, all of this.
Re:There is another big point here. (Score:3, Interesting)
Also it says Canada, so different rules might apply.
Here in Denmark during some riots in the spring the police raided several apartments illegally, they where searching for some of the instigators - while raiding they came across different illegal things like drugs and weapons, while the searches where illegal, so was the items found and there is no getting out of jail free card for those implicated.