Law enforcement routinely secures orders requiring that tech companies hand over data, but the targets of those requests don’t always know if they have been under the microscope, EnGadget reports.

MIT scientists have developed blockchain based system that will help track these requests while still protecting investigations and police. CSAIL system would ensure that police and courts send all the right documents in a way the public can see, but would keep the agencies’ actions confidential.

Different types of courts will be able to disclose large volumes of info without asking institutions to share info between each other. You could get transparency into data requests without having to talk to multiple services.

This approach is a part of a concept aiming at increase of transparency of law reinforcement in the US.