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posted by martyb on Friday January 25 2019, @08:07AM   Printer-friendly
from the Gattaca dept.

Coming Soon to a Police Station Near You: The DNA 'Magic Box'

They call it the "magic box." Its trick is speedy, nearly automated processing of DNA. "It's groundbreaking to have it in the police department," said Detective Glenn Vandegrift of the Bensalem Police Department. "If we can do it, any department in the country can do it." Bensalem, a suburb in Bucks County, near Philadelphia, is on the leading edge of a revolution in how crimes are solved. For years, when police wanted to learn whether a suspect's DNA matched previously collected crime-scene DNA, they sent a sample to an outside lab, then waited a month or more for results.

But in early 2017, the police booking station in Bensalem became the first in the country to install a Rapid DNA machine, which provides results in 90 minutes, and which police can operate themselves. Since then, a growing number of law enforcement agencies across the country — in Houston, Utah, Delaware — have begun operating similar machines and analyzing DNA on their own.

The science-fiction future, in which police can swiftly identify robbers and murderers from discarded soda cans and cigarette butts, has arrived. In 2017, President Trump signed into law the Rapid DNA Act, which, starting this year, will enable approved police booking stations in several states to connect their Rapid DNA machines to Codis, the national DNA database. Genetic fingerprinting is set to become as routine as the old-fashioned kind.

[...] But already many legal experts and scientists are troubled by the way the technology is being used. As police agencies build out their local DNA databases, they are collecting DNA not only from people who have been charged with major crimes but also, increasingly, from people who are merely deemed suspicious, permanently linking their genetic identities to criminal databases.


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  • (Score: 1) by shrewdsheep on Friday January 25 2019, @12:33PM (1 child)

    by shrewdsheep (5215) on Friday January 25 2019, @12:33PM (#791699)

    Thanks, very informative. One observation: I believe the police machine does micro-satellites, meaning specific DNA locations need to be first amplified and then sequenced. This is a time-consuming step that can be (optionally) skipped when doing shot-gun sequencing as shown in the video.

  • (Score: 2) by gringer on Saturday January 26 2019, @07:17AM

    by gringer (962) on Saturday January 26 2019, @07:17AM (#792235)

    Microsatellites can also be specifically targeted using nanopore sequencing by using a CRISPR-targeted transposase, together with a feature of the sequencing kits that means that only phosphorylated bases are sequenced. Alternatively, it can be done by chopping up the DNA and using magnetic bead selection to fish out target sequences.

    --
    Ask me about Sequencing DNA in front of Linus Torvalds [youtube.com]