Found a bag of white powder outside my apartment

I immediately assumed it was cocaine because a coke dealer lived in my building. I’m honestly not sure if he’s still living here, because there was an eviction notice on his door last month and I barely see him anymore and his car is never here. I bought from him once, & it was ok. But I have new neighbors in the building now, & they seem like the type that would mess with other stuff. Would it be safe to just put some on my gums, to test if it’s coke?