Sooner or later, it will happen: there is a need to force a person to give access his/her datapod.
Just like breaking and entering in a house is not allowed, neither should it be allowed for your pod.
Police researchers might want to access your house, and indeed they can if you allow them or if they have a search warrant.
In a similar way, with a data-warrant licenced by the legal system, you should provide police researchers access to your data-pod, or at least those parts where the relevant data is stored.
The warrant can indeed be translated to a specific query on your data-pod that only the relevant data is extracted.
We do advise that you don't put illegal content on your data pods.
Data pods are meant for data storage with the fine grained options of sharing.