Residents in Brookfield are being asked to help decide the future of the town’s police headquarters as officials study whether to expand the current building or construct a new facility. Town leaders say the department has outgrown its 1984 headquarters on Silvermine Road after the force expanded from 25 officers to 39, along with added specialty units and dispatch staff. Public forums and an online survey are now underway as the committee prepares recommendations that could eventually go before voters later this year.