Complex sentence: CO19's work allows the vast majority of policing activities within Greater London to be conducted in the traditional manner by unarmed officers, within the media it is sometimes considered London's equivalent to the SWAT units in the United States.
Split into simpler sentences: CO19's work allows the vast majority of policing activities within Greater London to be conducted in the traditional manner by unarmed officers. Within the media it is sometimes considered London's equivalent to the SWAT units in the United States.