Ah yes, the classic article of procrastination: "We have to look at it case by case". This is code for meaning we don't know the answer and can only stall for time until a plausible response presents itself. A modern day mantra that all too many of us are familiar with.
"I can't give you an answer right now, we have to look at it case by case..."
1980
Formal corporate terminology used in professional settings.