Boston Police District B-3 Is Having a Ball! WHO: Boston Police Commissioner Ed Davis; Boston Police District Captain James Claiborne; District B-3 (Mattapan/Dorchester) Police Officers; Boston Police Recruits; over 300 Senior Citizens, who reside in the Mattapan/Dorchester area; the Mattapan/Dorchester Neighborhood Council; Police Athletic League WHAT: Boston Police District B-3 is hosting a ball for more than 300 local senior citizens. Seniors will be treated to an evening of dinner and dancing. Officers in uniform will be serving dinner. WHERE: Unity Sports and Cultural Center 10 Dunbar Ave. Dorchester, MA WHEN: Friday, April 20, 2007 6:00 pm – 11:00 pm MEDIA OPPORTUNITY: 6:30 pm – 7:30 pm WHY: Boston Police take this opportunity to show appreciation for our local senior citizens and their contributions to our community.