In any case in which paternity has not been established, the court, on its own motion or on motion of the plaintiff or the defendant, shall order the mother, the alleged father and the child or children to submit to genetic tests and any other tests which reasonably prove or disprove the probability of paternity. If paternity has been previously established, the court shall only order genetic testing pursuant to Section 93-9-10. If any party refuses to submit to such tests, the court may resolve the question of paternity against such party or enforce its order for genetic testing as the rights of others and the interest of justice require.