impugnable

I think it important that a regulatory body should know with precision from whom (if anyone) they have to invite or receive representations without first having to form an impugnable judgment as to who those persons are.

What was decided in regard to the applicant Handscomb was that where the first review date predicated an equivalent determinate sentence well in excess of that which could have been imposed under established sentencing practice, there was impugnable unreasonableness.