A senior counter-terrorism detective who is the first person to be convicted under the fresh investigations into corruption and phone hacking was today jailed for 15 months.

"It is, in my judgment, a very serious matter indeed when men or women who have all the benefits, privileges and responsibilities of public office use their position for corrupt purposes."

Casburn, from Hatfield Peverel in Essex, called the NotW news desk on September 11 2010, and spoke to journalist Tim Wood about the fresh investigation into phone hacking.