whats up with bike racks?

i got my bike stolen today and everywhere i look i can not find any laws on bike racks. i can not find if the business that the bike rack is attached to is responsible in some way for my stolen bike or how to go about filing a report and what good would that do? i also can not find any previous stolen bike cases (do any exist?). i wanna know if i can be compensated by the city or whomever the bike rack belongs to for my lose. i understand that a bike rack is a "commodity" that business usually provide or the city but so is a toilet and if it explodes with me on it someone is responsible no? should there not be a sign that says "leave at own risk" if the business is not responsible? i need to find answers to such questions. please help