I'm posting a link to a news story about what may have been phone hacking in the Thames Valley Police area. See Journalist fears she is "smokescreen" in Sadiq Khan bugging scandal.
The Guardian reports that the case was later thrown out by the judge. See Thames Valley police leak case against Sally Murrer thrown out
The case, at least on the surface, seems to constitute quite a different set of circumstances about the relationships involving the press, the police and politicians.
The decision to prosecute appears to have taken place while Sara Thornton was Chief Constable of Thames Valley Police (having been appointed to that post in January 2007).
Maybe Lord Leveson should look at such cases too, if he is to reach a valid and balanced conclusion.