The sums involved, the judge said, were 'completely unacceptable' and proof that there needed to be 'rigorous control' on amounts spent - particularly on expert evidence.

And, most important, there would have to be rigorous control of spending.

These methods can make the infestation worse and further the need for more rigorous control methods.

I have started to put rigorous controls in place.

We introduced rigorous controls and numbers began to fall.