DOVER, Del. (WBOC/AP)- Last call could prove to be a hang-up this holiday season at Delaware bars and restaurants, and happy hour a little dour.



Division of Alcohol and Tobacco Enforcement agents are partnering with state highway safety officials for a barroom blitz, conducting undercover operations to prevent bars and restaurants from serving alcohol to visibly intoxicated patrons.



If agents see a drunk person being served alcohol, the server and the establishment could face criminal charges. The business also could face administrative penalties as well.



Officials say the crackdown is aimed at reducing drunken driving and will run from mid-December through mid-February. A special emphasis will be placed on "happy hour" enforcement.



Officials say that prior to the undercover operations, uniformed alcohol enforcement officers will provide prevention and awareness training for retail establishments about the laws regarding serving intoxicated patrons.