IntLawGrrls.com has an interesting article comparing the laws in various countries regarding the collection of DNA for storage in databases, and discussing trends. Here’s a snippet:
Crime control measures in the United States often represent a prototype for other countries in terms of the usual trend and direction of policy transfer; however, until recently England and Wales stood as the outlier in regards with the most expansive scheme of DNA retention for innocent persons in the common law world.
Many common law countries are increasing gradually the scope and populations of DNA databases, by permitting collection at arrest or charge, rather than it being predicated on conviction as was once the case. Moreover, judicial approval is not required in the United Kingdom or New Zealand, or at federal level in the United States.
Canada and Australia differ in limiting collection to indictable offences and in requiring a warrant for DNA collection in certain instances. Such a requirement is preferable because of the express articulation of reasonable suspicion and judicial involvement. Limiting the power to authorize DNA collection to judges ensures that an adequate detachment is maintained between the investigating body and the appraiser of reasonable suspicion on which DNA collection is predicated.
Read more here…..
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