as far as i know, my partners have contacted the buildings dept.
i wasn't at work when they contacted the police.
the problem we are encountering is this:
(1) we are on the podium above a shopping centre, our landlord is the shopping centre, but we are located directly under the residential buildings
(2) shopping centre management pass the ball to the residential building's incorporated owners, saying, it has nothing to do with the shopping centre
(2) incorporated owners pass it off to individual landlords saying it is up to them
(3) individual landlords say they can't do anything without the buildings incorporated owners....
so, nothing gets done and we still have cement falling onto our playground.