What is the test for determining whether the trial court erred in denying defendants' request to review Bittar's interview with the shopkeepers?

The parties' initial briefing on whether the trial court erred in denying defendants' request to review Bittar's interview with the shopkeepers focused on the attorney work-product doctrine, as discussed in Coito v. Superior Court (2012) 54 Cal.4th 480, 499-500, 142 Cal.Rptr.3d 607, 278 P.3d 860 ( Coito ). While that doctrine is important, as we discuss below, its relevance is necessarily constrained by the context of defendants' discovery request for witness statements obtained by a codefendant in a criminal trial. Accordingly, we asked the parties to submit supplemental briefing on

[223 Cal.Rptr.3d 124]