Best Practice for DLP deployment

Hi

We have deployed DLP (Network Discover) within the UK and now wish to extend it to our international locations (US, Australia and Europe).

We are currently in the design phase and are looking for advice on whether we should do all the DLP scanning from our UK data centres or deploy Network Discover servers to the international locations and just return incidents to the centralised Enforce Server.

Any advice what should be considered and on the best approach would be appreciated.

Thanks,

Paul