Section 452.880 - Hearing and order1. Unless the court enters a temporary emergency order under section 452.755, upon a finding that a petitioner is entitled to the physical custody of the child immediately, the court shall order the child delivered to the petitioner unless the respondent establishes that:(1) The child custody determination has not been registered and confirmed under section 452.810, and that: (a) The issuing court did not have jurisdiction under sections 452.740 to 452.845;(b) The child custody determination for which enforcement is sought has been vacated, stayed or modified by a court of a state having jurisdiction to do so under sections 452.740 to 452.845 or federal law; or(c) The respondent was entitled to notice, but notice was not given in accordance with the standards of section 452.762 in the proceedings before the court that issued the order for which enforcement is sought; or(2) The child custody determination for which enforcement is sought was registered and confirmed under section 452.810, but has been vacated, stayed or modified by a court of a state having jurisdiction to do so under sections 452.740 to 452.845 or federal law.2. The court shall award the fees, costs and expenses authorized under section 452.890 and may grant additional relief, including a request for the assistance of law enforcement officials, and set a further hearing to determine if additional relief is appropriate.3. If a party called to testify refuses to answer on the grounds that the testimony may be self-incriminating, the court may draw an adverse inference from such refusal.4. A privilege against disclosure of communications between spouses and a defense of immunity based on the relationship of husband and wife, or parent and child shall not be invoked in a proceeding under sections 452.850 to 452.915.