A Missouri Affidavit for Security Release — Group Trusts is a type of document used to protect the interests of creditors when a trust is formed. It is a legally binding document that outlines the terms and conditions of the trust, including the roles and rights of the parties involved. The affidavit must be signed by all members of the group trust before it is valid. There are two types of Missouri Affidavit for Security Release — Group Trusts: The Comprehensive Affidavit, which is more comprehensive in its coverage; and the Standard Affidavit, which is more basic in its coverage. Both affidavits must be signed by all parties involved in the trust and must be filed with the county circuit court in the county where the trust is formed.