California Legal Brief

The Rule of Pagan v. City of San Rafael is that a public entity is entitled to summary judgment on dangerous condition claims when the alleged dangers are open and obvious to users exercising due care, under circumstances where the plaintiff cannot establish liability through expert testimony that relies on unpleaded theories of liability, inadmissible hearsay, speculation without foundation, and legal conclusions about regulatory compliance.

The Rule of Yan v. City of Diamond Bar is that evidence of prior branch failures from the same tree species in the same vicinity is admissible to prove a public entity's actual or constructive notice of a dangerous condition, under circumstances where the trees share common characteristics (same species, maintenance schedule, and environmental factors) and the evidence demonstrates a pattern of recurring problems that should attract the entity's attention to a condition requiring correction.