Old Trinity, Tiffin has a ministry with Crossweah, a correctional facility in Tiffin. Before the ministry began, a parishioner set up a county-wide Opiate Task Force of various professionals. The Rev. Aaron Gerlach was asked by him to participate and offer a spiritual perspective, which eventually led to the Crossweah ministry. The ministry falls into three parts: Bible study, church attendance, and personal relationships. During Bible study, participants may choose what to focus on or it may be focused on the lectionary. Old Trinity and The Journey Church, a non-denominational church, are designated by Crossweah, however, permission to attend other churches is granted. A parishioner transports the men to Sunday service, and the women are transported by a taxi service that the church provides. Parishioners also attempt to help Crossweah clients find a church home upon release. Pam Easterday, a UCC pastor, also shares in the ministry