Complex sentence: Sheriff Gregory J. Ahern created Urban Shield in 2007 for law enforcement tactical teams to become better prepared to respond to any act of terror or major critical incident and to establish better relationships between law enforcement, fire personnel and medical personnel.
Split into simpler sentences: Sheriff Gregory J. Ahern created Urban Shield in 2007 for law enforcement tactical teams to become better prepared to respond to any act of terror or major critical incident. The purpose was also to established better relationships between law enforcement, fire personnel and medical personnel.