The City of Ann Arbor Police Department currently offers two ways that citizens can find out crime information in a speedy manner.
(Taken from A2.Gov) Citizens can receive crime alerts by either:
Signing up for an e-mail subscription to receive crime alert communications, which you can do by clicking here.
Subscribing to crimemapping.com to receive crime alerts when new crimes occur near a specific address. To sign up for crime alert e-mails, click here.
I have taken the liberty of pulling up that data and putting a link for it here: