yes, there is an online tool to search for inmates in dallas county, called the dallas county inmate lookup tool. What information do i need to provide to search for an inmate? Saturday 8:00 a. m. Sunday 8:00 a. m. Visitors will not be processed during the last. there are five ways to find out if someone was arrested in dallas county: Look them up on the official jail inmate roster. Look them up on vinelink. com, a national inmate. the search tool can be accessed through the department’s official…