California Proof of Service of Response by Mail — Elder or Dependent Adult Abuse Prevention is a legal document used to prove that a defendant has been served a summons and complaint in an elder or dependent adult abuse prevention case. The document, which is typically filled out by the defendant's attorney, states that the complaint and summons were sent by mail to the defendant's last known address, and that the defendant has been given the legal notice required by law. The document also states that the defendant has been given a reasonable time to respond to the complaint. There are two types of California Proof of Service of Response by Mail — Elder or Dependent Adult Abuse Prevention: Proof of Service of Summons and Complaint, and Proof of Service of Response.