Nope. That's not a violation of civil liberties or anything.

With the New Year approaching, cities across the country are figuring out ways to deal with people who go a little... ahem... overboard in ringing in the New Year.

   The Dallas Police Department will conduct a No-Refusal DWI Initiative during the New Year’s holiday. This initiative will begin 6:00 P.M., Friday December 28th 2012 and will end 6:00 A.M., Wednesday January 2nd 2013.

    During this initiative officers will secure a search warrant for a blood sample from all persons arrested for DWI who refuse to voluntarily give a breath and/or blood sample.

That's right.  If you're arrested under suspicion of drunk driving in Dallas this weekend, and you don't want to voluntarily incriminate yourself... well, we'll just get a search warrant to get that incriminating evidence!