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Video shows ex-Mantua police chief driving in center median then losing balance during sobriety test before his DUI arrest

When a Utah Highway Patrol trooper first saw the Mantua police chief, he was driving down the center median of a Cache County highway in a police cruiser at than 80 mph. The trooper was concerned because the car didn’t have its lights and sirens on.

After a short conversation, the trooper said, “Shane, I’ll be honest. You’re really worrying me with how you’re acting right now. Are you on any meds?"

The redacted dash cam video, released Thursday by the Department of Public Safety, begins when the trooper spots Zilles, and it continues through his eventual arrest after failing field sobriety tests.