Eight properties are in the running to be the location of Aroostook County’s next jail. The sites, submitted in response to a land search launched by the county last month, include both public and privately owned land along or near the Route 1 corridor. They include three parcels in Caribou, two in Houlton and one each in Presque Isle, Limestone and Fort Fairfield. The potential jail properties were included in a document summarizing responses t…