That's from a year and half ago. (Jun 2012)
A couple of years ago the Indiana Supreme Court upheld a conviction of man accused of murdering a police officer in a middle of the night, no-knock raid on his house. (which just so happened to be the wrong house, IIRC).
There was a large hue and cry across the state with something about the 4th Amendment.
This law is a result of that bad decision. Funny that it's not mentioned in that story.