Wellington, March 9 NZPA - The police don't know who did it, the prime minister has a theory but won't say what it is, and the victim says he accepts the culprit probably won't ever be found.

By Maggie Tait of NZPA Wellington, March 8 NZPA - Police will treat politically sensitive allegations differently in future after complaints about how they handled investigations into how a journalist received former National Party leader Don Brash's emails.