Leave no stone unturned

“This case of police torture and murder is shocking. But this is not the first case and it is unlikely to be the last case until and unless the police conduct serious interrogations and investigations and leave no stones unturned,” said Sunai Phasuk, a senior researcher for Human Rights Watch.

We have a lead inspector who has a global overview of the investigation and will have site handback in mind, although we won't leave any stone unturned.

[He] left unturned no stone / To make my guilt appear, and hide his own.

We mean to leave no stone unturned to carry out our intent.

But we must make it clear that in building our friendship with the Chinese on the mainland we will not sacrifice our Chinese friends on Taiwan. Julian Amery put the issue eloquently: "It is often necessary and legitimate to abandon causes long supported and to dissolve pledged bonds of alliance. But it is always wrong to abandon men who have been friends to their fate. We may have to jettison their interests but we should leave no stone unturned to save at least their lives."

James Sutherland insists Australia had "no alternative" but to cancel the tour. "We have left no stone unturned in trying to ensure the tour could proceed as planned but at the end of the day the safety and security of our employees must come first."