CALIFORNIA EVIDENCE: CIVIL AND CRIMINAL
...Presumptions & Burden of Proof
......Res Ipsa Loquitur (RIL)
.........Res Ipsa Instruction Proper
............Multiple Parties
3 Cards On This Topic:

Where 2 Ds have right to control instrumentality, RIL may be applied to hold both liable.

RIL proper where either of 2 parties could be negligent, and one legally responsible for acts of other.

RIL proper where multiple parties involved and D cannot prove which was liable.