Discovery is a process for obtaining information about a lawsuit. A party must provide copies of any documents or exhibits the party will use to support a claim or defense, including copies of electronically stored documents.The purpose is to disclose not ambush opposing. That applies to all parties. Discovery must be completed within 240 days. The date from which the deadline to complete discovery is measured is the required Early Meeting. (D) propounding written discovery;. (E) disclosing nonexpert witnesses;. 1) There is generally no need to send discovery requests to the Court or give notice of discovery being initiated. 26.1, Arizona Rules of Civil Procedure (ARCP).