Here is a good resource for you:
http://www.ci.minneapolis.mn.us/police/crime-statistics/index.asp For the weekly crime maps you will need to click on the correct precinct they are looking in. There are precincts 1-5. For some reason the annual reports are a little behind and the last report is 2006. I would recommend looking at the weekly precinct maps and also the crime statistics which allow you to view by neighborhoods over several times of the year.
You can always call the police department and ask for information with in a certain radius.
Please let me know if there is anything else I can help with or assist in your buying process. Remember buyer representation is free and there is about 3 weeks left to find a home and close in time for the $8000 First Time Home Buyer Tax Credit!