Drug dealing and using outside garage gates of 737 Carnarvon st

Hi, this morning I was returning home on 737 Carnarvon St. and found around 10 people blocking the garage entrance. As I waved my hand to ask for more space to let my car in I got verbally assaulted. As you drive in you could see people lighting pipes and tinfoil, others negotiating their dose with money on hand. Finally got inside the garage and could still hear shouting.

I had to call the non-emergency police line and got treated harshly again, like making me feel guilty I had called at all. After I fully identified myself and forcefully answer strict yes/no questions they said they will send somebody.

Before our building manager could wave off a couple people to move along but now they are a more aggressive crowd that camps at the garage gates.

Also, they leave the entrance full of needles, used tinfoil wrappers and half eaten food. It's already bad, happens almost everyday specially at night. It makes you think twice to walk through the gates if they are there.

I can't see any other solution than to have a constant presence to force them to move along.