What is Special Trust?

Legal Definition
A special trust, is one where a trustee is interposed for the execution of some purpose particularly pointed out, and is not, as in the case of a simple trust, a mere passive depositary of the estate, but is required to exert himself actively in the execution of the settler's intention; as, where a conveyance is made to trustees upon trust to reconvey, or to sell for the payment of debts. 2 Bouv. Inst. n. 1896. See Trust.
-- Bouviers Law Dictionary
Legal Definition
Where the machinery of a trust is introduced for the execution of some purpose particularly pointed out, and the trustee is not a mere passive depositary of the estate, but is called upon to exert himself actively in the execution of the settlor's intention ; as, where a conveyance is to trustees upon trust to sell for payment of dehts. Special trusts have been divided into (1) ministerial (or instrumental) and (2) discretionary. The former, such as demand no further exercise of reason or understanding than every intelligent agent must necessarily employ ; the latter, such as cannot be duly administered without the application of a certain degree of prudence and judgment. 2 Bouv. Inst no. 1896; Perkins v. Brinkley, 133 N. G. i54, 45 S. E. 541; Flagg v. Ely, 1 Edm. Sel. Cas. (N. Y.) 209; Freer v. Lake, 115 111. 662, 4 N. E. 512 ; Dodson v. Bali. 60 Pa. 496, 100 Am. Dec. 586.
-- Black's Law Dictionary
Legal Definition
One wherein the trustee’s duty is active, he being an agent to execute the donor’s will. See 98 Am. Dec. 356, note.
-- Ballentine's Law Dictionary