Just before 4 a.m. on Sunday, an unruly man and woman who had been kicked out of a nightclub on Three Mile Harbor Road put up such a fuss that the police had to be called.

Suffolk County District Attorney Timothy D. Sini has opened a new office, called the Office of Immigrant Affairs, that will work to broker trust between at-risk communities and law enforcement. Made up of expert prosecutors and bilingual staff, it aims to improve the handling of the increasing number of crimes targeting immigrants.