Utah Code § 22-1-9
If a fiduciary makes a deposit in a bank to the fiduciary's personal credit of checks drawn by the fiduciary upon an account in the fiduciary's own name as fiduciary, or of checks payable to the fiduciary as fiduciary, or of checks drawn by the fiduciary upon an account in the name of the fiduciary's principal, if the fiduciary is empowered to draw checks thereon, or of checks payable to the fiduciary's principal and indorsed by the fiduciary, if the fiduciary is empowered to indorse such checks, or if the fiduciary otherwise makes a deposit of funds held by the fiduciary as fiduciary, the bank receiving such deposit is not bound to inquire whether the fiduciary is committing thereby a breach of the fiduciary's obligation as fiduciary; and the bank is authorized to pay the amount of the deposit or any part thereof upon the personal check of the fiduciary without being liable to the principal, unless the bank receives the deposit or pays the check with actual knowledge that the fiduciary is committing a breach of the fiduciary's obligation as fiduciary in making such deposit or in drawing such check, or with knowledge of such facts that its action in receiving the deposit or paying the check amounts to bad faith.
Utah Code § 22-1-9