[JURIST] The American Civil Liberties Union (ACLU), the Hispanic Interest Coalition of Alabama (HICA) [advocacy websites] and several other civil rights groups jointly filed a motion for preliminary injunction [text, PDF] on Thursday in an effort to prevent an Alabama immigration law from taking effect on September 1. The motion, filed in the US District Court for the Northern District of Alabama [official website], claims the controversial Alabama law [HB 56 text] that expands restrictions on undocumented immigrants is unconstitutional….