A blind trust is a trust arrangement where the settlor and, typically, the beneficiaries have no knowledge of, or control over, the specific assets held or the day‑to‑day investment decisions, which are managed independently by the trustee or an investment manager. It is used to reduce conflicts of interest, for example for politicians, senior public officials or company directors, by distancing them from decisions affecting their personal assets. “Blind trust” is a descriptive term rather than a defined statutory category in the UK or Ireland; the underlying trust is constituted under general trust law (including trustee legislation and fiduciary principles), with additional confidentiality and non‑interference obligations. Key features usually include: wide investment powers for the trustee; restrictions on disclosure to the settlor/beneficiaries; and express clauses preventing directions or influence over trust management. Across England and Wales, Scotland, Northern Ireland and Ireland, the concept is broadly similar, though detailed requirements may arise from ethics, standards in public life or anti‑corruption rules, rather than from trust legislation itself. Legal practitioners should consider tax, disclosure, registration (e.g. trust registers) and regulatory implications when advising on the creation or operation of a blind trust.