Defend your right to own a car.

[BanginJimmy]

Does an employer have the right to have an employee of another business car searched in a multi-unit property if he feels it "necessary to prevent an immediate threat to human health, life, (and) safety" or does his ability to do so only extend to his own employees or designated parking spaces since he doesn't control the entire property?

Not being pedantic, genuinely interested in how the law would apply as I can see it being complicated when enforcing in certain situations.

If the employer can communicate his fears, police would be able to search the vehicle.

As to the rest of the question, its over my head. You would need to talk to a lawyer about it. I would assume his answer would be something along the lines of "it would be decided on a case by case basis".