Howard County Deputies John Eric Glidewell and Joey Davis attended a three day class on Criminal Interdiction sponsored by the Criminal Justice Institute.   The training was held on June 15 through June 18, 2010 at the Rogers Police Department.   The class was intensive instruction pertaining to effective highway interdiction.  It involved elements such as drug and criminal activity detection, proper observance of search and seizure laws, contamination issues, and ethical conduct during the traffic stop.