[newfreep]

Madison Police Chief Michael Koval said officers responded to a disturbance call where it was reported that a person was jumping in and out of traffic, and possibly responsible for a battery.

Koval said the officer heard something in the person's home and went in. He said the person assaulted the officer, and the officer shot him.

[gorush]

Based on the article alone, apparently cops are allowed to enter a home if they hear something.