If you own an apartment building and you are suspected of committing crimes, the government cannot search or sieze the entire building without a warrant for each individual apartment. Each renter has 4th amendment protection and the courts have consistently ruled this way. So if I'm a renter, and you're the police or FBI, you can't get a warrant to seize my property from a judge until you can convince a him that you have probable cause to believe I am involved in a crime (the fact that another renter in the building or the property owner is a suspect is not justification). This same premise applies to storage lockers and other rented space. You can't simply seize an entire rental property. Co-location data centers should function the same way. Our servers are in locked cabinets at our co-lo. We have an SLA and a contract lease with the host. The property in that space is legally ours. Let's hope we never have to convince a court of that.