How has the Minneapolis domestic violence experiment changed police policies that now mandates in domestic violence cases in Illinois?

Based on the results of the Minneapolis domestic violence experiment, which concluded that arrest was the most effective in most domestic violence cases, the Minneapolis Police Department started requiring police officials to use it as the main approach and to make a report on the reasons not to do it if they fail to do it.

Explanation:

The police policies were changed in March of 1984 and led to a record of people in jail on spouse assault charges.