The Labor Day weekend kept law enforcement busy as they searched for impaired drivers.
Arizona Highway Patrol officers, sheriff's deputies and other law enforcement officers arrested 582 people on suspicion of driving under the influence during the holiday weekend.
While there were fewer traffic stops overall compared to last year, more people were arrested for both misdemeanor DUI and extreme DUI.
There were also more drug-related DUI arrests, with 103 this year compared to 85 in 2013.
The number of under-21 liquor law citations also jumped substantially this year from 31 to 218.