HelicoptersPhotosTracking Photos Denver Police Department State of Colorado Bell 407 N710DP May-98 County of Denver May98-Dec19; Denver Police Department (DPD) pictured Bell 407 N710DP May-98 County of Denver May98-Dec19; Denver Police Department (DPD) pictured Bell 407GXi N720DP Apr-23 pictured Bell 407GXi N720DP Apr-23 pictured