A federal version of New Mexico's Katie's law passed with overwhelming support from Congress Friday, but before the President can even sign it into law the nation's highest court is getting ready to determine if its constitutional.
The legality is being challenged after a Maryland criminal says the justice system violated his civil rights.
The Supreme Court will have to answer this question: Is it okay to pull DNA from someone who's been arrested but not convicted? If the nation's highest court says no, what does that mean for Katie's law?
Twenty-five other states have legislation similar to Katie's law.