Insurance Code (usually included in commercial codals)
Section 85. An insurer is liable where the thing insured is rescued from a peril insured against that would otherwise have caused a loss, if, in the course of such rescue, the thing is exposed to a peril not insured against, which permanently deprives the insured of its possession, in whole or in part; or where a loss is caused by efforts to rescue the thing insured from a peril insured against.