A Blind Trust is an asset holding construction
A blind trust is a trust in which the trust beneficiaries have no knowledge of the holdings of the trust, and no right to intervene in their handling
In a blind trust, the trustees (fiduciaries, or those who have been given power of attorney) have full discretion over the assets. Blind trusts are generally used when a trust creator (sometimes called a settlor, trustor, grantor, or donor) wishes for the beneficiary to be unaware of the specific assets in the trust, such as to avoid conflict of interest between the beneficiary and the investments.
Politicians or others in sensitive positions often place their personal assets (including investment income) into blind trusts, to avoid public scrutiny and accusations of conflicts of interest when they direct government funds to the private sector.
Source: Wikipedia