Discovery – Supplemental Interrogatories

We have talked about Form Interrogatories and Special Interrogatories, but what about Supplemental Interrogatories?

Supplemental responses to interrogatories may be requested during litigation after the responses have been served.  If considerable time and/or additional discovery has occurred, a party may ask another party to supplement their original responses with any additional information and/or responses.  This type of request is referred to as “Supplemental Interrogatories.”  This is not a separate category of interrogatory, but rather a request for supplemental or up-dated responses to the interrogatories (whether form or special) already served and responded to earlier in the discovery process.

California Code of Civil Procedure section 2030.070. (a) provides:  ” In addition to the number of interrogatories permitted by Sections 2030.030 and 2030.040, a party may propound a supplemental interrogatory to elicit any later acquired information bearing on all answers previously made by any party in response to interrogatories.”

Sub-section (b) goes on to provide: “A party may propound a supplemental interrogatory twice before the initial setting of a trial date, and, subject to the time limits on discovery proceedings and motions provided in Chapter 8
(commencing with Section 2024.010), once after the initial setting of a trial date.”

More information regarding Supplemental Interrogatories can be found in the California Code of Civil Procedure.

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