Complex sentence: Larger agencies have the resources to have separate units for internal affairs, but smaller agencies, which do not have the luxury, are more common, with 87% of police departments in the United States employing 25 or fewer sworn officers.
Split into simpler sentences: Larger agencies have the resources to have separate units for internal affairs, but smaller agencies do not have the luxury. Small agencies are more abundant than some may realize with 87% of police departments in the United States employing 25 or fewer sworn officers.