1. If, after investigation, the board of county commissioners determines that the person is an indigent person, the board of county commissioners shall so certify in writing to the hospital and to the Board of Trustees of the Fund.
2. For the purposes of this section, a person shall be deemed an indigent person and unable to pay for the hospital care furnished if it appears that, upon diligent search and inquiry, neither the person nor any other person responsible for his or her support can be found for service of process or that, if an action were brought and judgment secured against the person, or against any person responsible for his or her support, for the amount of the unpaid charges, execution on the judgment would be unavailing.