Thia game is pretty good, I like it, but I'd like to point out some logical flaws.
So, you are some kind of policeman in a city with awful public security, where you'd better not leave anything outdoors or it will be stolen. Some people still leave stuff in the street, and they will be stolen indeed: you, a police officier steal them, without any moral dilemma! I know it's natural in point and click adventure games that you pick up random stuff lieing around, but in most games it's made to not look like stealing becouse the stuff is either yours alredy or it's junk, or it's owner clearly does not mind you takeing it, or something like that - but here that shovel and crowbar being near a house are most likely someone's property. And you, playing as a policeman really shouldn't just take them.
I had no problems with most of the puzzles, except for the lab door: there are two traps there; after you disarm both the spikes and the bomb you still need to jam the gears - even thoug it's unknown what they do, and even after that it says it's not safe to open the door yet. It looks like you disarmed everything and there is no hint what more you should do and I still have no idea why you need to put the crowbar to the door.