§ 1. A Bishop who, contrary to the provision of can. 1015, ordained someone else’s subject without the lawful dimissorial letters, is prohibited from conferring orders for one year. The person who received the order is ipso facto suspended from the order received. § 2. A person who comes forward for sacred orders bound by some censure or irregularity which he voluntarily conceals is ipso facto suspended from the order received, apart from what is established in canon 1044, § 2, n. 1.
Source: Code of Canon Law (Vatican.va)