Hugo Black,
Spiegel's Estate v. Commissioner of Internal Revenue…
“ What we said demonstrates that the taxability of a trust corpus under this provision of § 811 (c) does not hinge on a settlor's motives, but depends on the nature and operative effect of the trust transfer. In the Church case we stated that a trust transaction cannot be held to alienate all of a settlor's 'possession or enjoyment' under § 811 (c) unless it effects 'a bona fide transfer in which the settlor, absolutely, unequivocally, irrevocably, and without possible reservations, parts with all of his title and all of his possession and all of his enjoyment of the transferred property. ”
