LONDON (AP) — The trial is not over yet, but tremors from the phone-hacking case are shaking Britain's political establishment — and Rupert Murdoch's media business.

Jurors are still considering bribery counts against former News of the World editor Andy Coulson and ex-royal editor Clive Goodman. On Tuesday they convicted Coulson of conspiring to hack phones, but cleared former editor Rebekah Brooks and four others.

The trial has refocused attention on illegality at Murdoch's British tabloids.

The Guardian newspaper reported that detectives want to question Murdoch "under caution" — meaning as a potential suspect. Neither the police nor Murdoch's British firm News U.K. would comment

Meanwhile the sister of murdered teenager Milly Dowler — whose phone was hacked in 2002 — on Wednesday urged Prime Minister David Cameron to seek tougher media regulation.