Section 54.964 - General powers of custodial trustee(1) A custodial trustee, acting in a fiduciary capacity, has all the rights and powers over custodial trust property which an unmarried adult owner has over individually owned property, but a custodial trustee may exercise those rights and powers in a fiduciary capacity only.(2) This section does not relieve a custodial trustee from liability for a violation of s. 54.962.1991 a. 246; 2005 a. 387 s. 561; Stats. 2005 s. 54.964.