It's prevented us from killing someone that Guild law says must die.

Guild law required a master pilot engaged in evaluating a junior to judge and implement appropriate training.

Of course, he was no longer bound by Guild laws since he was outcast.

They ensure that all Ages are maintained according to Guild laws.

Tell me some new thing that you may satisfy the Guild law.

Ridcully knew the Guild laws.

But I exercise my option to turn my coat, under Guild laws; that gives me safe conduct, and that's sufficient.

He thought quickly about all he knew of Guild law.

'The law is that Guild law prevails inside Guild walls,' he said.

Used weaponry normally forbidden under Guild law, but only when outside the city boundaries.