CALIFORNIA EVIDENCE: CIVIL AND CRIMINAL
...Privileges
......Attorney Work Product
.........Expert's Reports/Documents
............Good Cause for Discovery
5 Cards On This Topic:

Burden is on party claiming item as work product to show need for protection.

Good cause for discovery of expert's report includes showing that s/he may be called as witness.

Cannot prohibit party from taking deposition of expert when object no longer available or altered so like tests would be impossible.

Good cause for discovery of expert's report includes showing no adequate substitute available.

Bringing additional D into case close to trial not good cause to get other party's expert advisor report. Solution is continuance.