Depends on a country, but yes, police generally has more privileges in that regard. The laws here are also different for casual public filming vs. permanent camera or otherwise targeted filming (without consent) in public space. It also matters what you do with the material.
I actually don't know if businesses are anything special compared to individuals in that regard. They can, of course, have security cameras filming their private properties (like individuals can) as long as they are open about it. And again, they can't use or spread the material however they want.
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Depends on a country, but yes, police generally has more privileges in that regard. The laws here are also different for casual public filming vs. permanent camera or otherwise targeted filming (without consent) in public space. It also matters what you do with the material. I actually don't know if businesses are anything special compared to individuals in that regard. They can, of course, have security cameras filming their private properties (like individuals can) as long as they are open about it. And again, they can't use or spread the material however they want.