You may also call witnesses who can testify to your parenting competence or who have witnessed inappropriate behavior by the other parent. (info.legalzoom.com)
Lower courts in this case also held the city court judge went too far in saying he could use his powers to find prosecutors in contempt if they didn't call witnesses and participate. (wamc.org)
You also have the option of calling witnesses to the stand to help support your case. (mollybkenny.com)