DALLAS (CBSDFW.COM) - Following an investigation by the Internal Affairs Division and disciplinary hearings held Thursday, Dallas Police Chief David O. Brown demoted Major Edwin Ruiz-Diaz to the rank of Lieutenant.

An internal investigation found that he drank alcohol off duty while in uniform at a Grapevine bar last week. It was reported to Grapevine Police that a uniformed officer was in the bar and consuming alcoholic beverages.  Grapevine Police responded and identified that officer as Major Ruiz-Diaz.

Ruiz-Diaz, a 24-year veteran, cannot appeal the discipline because he held an appointed rank. He was assigned to the Southwest Patrol Division during the time of the incident.

The department sent out a press release Thursday evening announcing that Brown had demoted Ruiz-Diaz.

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