Anyone involved in a bankruptcy case can depose any other party in interest. Bankruptcy Rule 2004 authorizes broad “fishing expeditions,” even if nobody has been sued.

If the bankruptcy court permits, an examiner may ask almost any question they want, as long as the question relates to the income, expenses, assets, and liabilities of a debtor, or the debtor’s right to a discharge. With these minor limitations, the person can ask any question they want in a deposition, and the witness is going to have to answer those questions under oath.