I was en route from my hotel to a cafe at 3.30pm in the heart of Lisbon, when I walked up this alley (the link I provided is the exact spot) when I saw 3 cops and 5 kids in an ongoing crime scene - 4 kids were facing the wall on the left side while being watch on by one cop whilst 2 cops were questioning another kid on the right side of the street.
I stopped to watch but got quickly ordered to leave by one of the cops. He said this is how it works in Portugal - and I had a feeling I'd get arrested if I didn't leave. So I left.
Was the cop right - does he have the authority to order me to leave a public crime scene?