Educational guide
California Civil Deposition and Subpoena Basics
A practical general-information checklist for understanding depositions and deposition subpoenas in a California civil case, based on official California Courts guidance. Depositions are complex and costly; this is not individualized legal advice, a litigation strategy or a deadline calculation.
- Understand the purpose before scheduling or responding. California Courts describes a deposition as sworn testimony taken outside court, usually recorded by a court reporter, that can help identify what a witness may say and preserve testimony for later use.
- Identify whether the proposed witness is a party or a nonparty and whether testimony, documents or physical evidence are requested. The required notice, subpoena, attachments, service and fees can differ, so do not use a generic form without checking the current procedure.
- Assess whether a deposition is proportionate and affordable. California Courts warns that taking a deposition is complicated and expensive and requires knowledge of evidence and discovery rules; it strongly recommends considering help from a lawyer.
- For a nonparty witness, review the official subpoena instructions and use the form that matches the request. California Courts identifies form SUBP-015 for personal appearance at a deposition and provides a separate process when the witness must also bring evidence.
- Describe the witness, topics and requested materials accurately. When an organization must designate a knowledgeable person or when documents are requested, the subpoena and any attachment should make the subject matter or items understandable without being unnecessarily broad.
- Arrange proper issuance and service, include any required witness fees, and preserve the issued subpoena and proof of service. A party should not assume that emailing a form or sending an informal request creates an enforceable obligation.
- Confirm whether the deposition will be in person or remote. California Rules of Court rule 3.1010 addresses oral depositions by telephone, videoconference or other remote electronic means and includes notice and participation requirements.
- If a deposition notice or subpoena creates a conflict, privacy concern, privilege issue, objection or need for protection, seek qualified help promptly rather than ignoring it. Use the official resources below, a court self-help center or a public law library for current procedural information.
Official resources
This guide provides general information only and is not legal or medical advice. Rules and individual circumstances differ. In an emergency, call 911.