The Episcopal Church has developed a great resource about children’s protection in church context. It is called “Model policies for the protection of children and youth from abuse” and can be found here (PDF).
ELCA has gathered information on a one place on their website. The informations are at http://www.elca.org/Who-We-Are/Our-Three-Expressions/Churchwide-Organization/Office-of-the-Secretary/Congregation-Administration/Legal-Issues-for-Congregations/Questions-About-Protecting-Children-and-Adults-from-Abuse.aspx.
In Ohio there are few Revised Code sections that deal with this issue: 109.574, 109.575, 109.576, 109.577, 121.401, and 121.402).