Reasonable belief the arrestee is in the house

Illinois is extremely liberal / easy in it's rules on entering premises to execute a warrant when you do not see the arrestee inside.

In Stibal, the officers testified that they thought Stibal had only one vehicle, and that vehicle was parked in the driveway.

The court ruled that that information was sufficient to enter with an arrest warrant.

(Stibal actually had just taken off on his motorcycle.)

Best -

DA