A good, albeit 3 year old, summary of Utah's liquor laws.
http://www.usatoday.com/travel/destinations/cityguides/saltlakecity/2003-10-07-spotlight-liquor_x.htm
http://www.usatoday.com/travel/destinations/cityguides/saltlakecity/2003-10-07-spotlight-liquor_x.htm