Sidewalk construction permit

so with the concrete. when we all got violations, i saw the inspector going around. not near my house or i would have asked for the justification of the violation. but he was stopped taking a break in one of those 3 wheeled cushman scooter like the parking agents use. he told me, if there is a discrepancy in height between flags greater than the thickness of one finger, it is a violation. we ended up getting a ticket for some cracks in flags. some were very tight cracks, but they said the entire walk had to be done. this was in concrete. i do not know what they look for in bluestone but heaved flags would be a guess.