stephenk said:
you can do two things.
you can send a letter to defense attorney and attach the additional information.
you can prepare and serve Supplemental Interrogatory Responses. Just update the responses that pertain to the information you are providing. Verify the responses and serve by mail on the other attorney.
My response:
Once again, I find myself respectfully disagreeing with my collegue, Stephenk. First of all, writer, you need to understand that Stephenk IS not only an attorney, local to me - - but he's ALSO "Defense counsel". As such, he'd love to tell you that your opponent attorney would have you prepare updates to your interrogatories voluntarily. But, under the law of California, YOU DON'T HAVE TO DO ANYTHING unless opposing counsel sends you another Interrogatory asking you to update your prior responses. Opposing counsel first needs to send you a "Supplemental Interrogatory" under Code of Civil Procedure section 2030(c)(8).
In addition to the 35-limit, a party may propound "a supplemental interrogatory" to obtain later-acquired information on matters covered by earlier interrogatories (but not on other topics). [Ca Civ Pro § 2030(c)(8)]
A supplemental interrogatory can be served at least 3 times:
• Twice prior to any trial setting; and
• Once after the initial trial setting (and before the 30-day "cut-off" on discovery proceedings before trial. [Ca Civ Pro § 2030(c)(8)]
• Further, if "good cause" is shown (e.g., lengthy continuances of the trial date), the court may permit more supplemental interrogatories. [Ca Civ Pro § 2030(c)(8)]
There is a duty to amend only when responses were erroneously given. [See Deyo v. Kilbourne (1978) 84 Cal.App.3d 771, 785, 149 Cal.Rptr. 499, 511--"Where answers are erroneous, or misleading, they should be corrected long before the pretrial conference"]
There is no duty to amend responses which were initially correct and complete but which might thereafter have become misleading or inaccurate because of later-acquired information. [Ca Civ Pro § 2030(c) (7)]
"Continuing interrogatories" (putting the burden on respondent to update earlier answers) are not allowed in California. Therefore, to ensure that trial preparation reflects currently available information, a "supplemental" interrogatory should be propounded by opposing counsel, which should read something like this - -
"Please review your answers to each set of interrogatories previously served on you in this action. If for any reason any answer is no longer correct and complete, identify the answer and state whatever information is necessary to make it correct and complete as of this date."
In other words, "later acquired" information does NOT have to be served on opposing counsel UNTIL he serves you with a Supplemental Interrogatory. So, until that happens, DO NOT SERVE your new information. DO NOT do the job of opposing counsel!
I am somewhat chagrined, but not surprised, that Stephenk would advise something that the law does not require, or allow.
IAAL