A number of Greater Danbury area Police Departments are hosting events tonight for the Annual National Night Out.  The camaraderie building campaign promotes strong police-community partnerships to make neighborhoods safer, more caring places.  National organizers say this is a time of unity to showcase the importance of citizen involvement in the police-community relationship.  The Brookfield Police Department is inviting residents to Town Hall from 4pm to 8:30pm for a free event with first responders featuring family-friendly activities.