One thing at a time though. The police/crime aspect and ambulance/sickness aspect are two entirely different animals. Each aspect would take bast a while to develop.
Ape Apps, LLC is an independent software development company founded in 2010 by Brandon Stecklein. Over the years, Ape Apps has published over 400 apps and games across various platforms. You can get in touch with Brandon on Twitter or by leaving a post on his wall @bastecklein