The Cheyenne Police department announces their Enforce underage drinking laws (EUDL) Operation "SUN BURN" tonight (Friday) and Saturday night. Cheyenne Police spokesman Sgt Rob Dafoe says the effort will be focused on combating underage alcohol consumption. Sgt.  Dafoe says activities will include under cover observers  in bars looking for underage drinkers. The " Party Posse" will also be in effect. Cheyenne police officers will team up with community partners to patrol and respond to reported underage drinking parties. Sgt. Dafoe says there will be a total of 12 additional enforcement personnel working each night.