found a bag of weed. what to do with it?

alright, i just found a LOT of weed in a ziplock bag in the city. i probably should’ve left it there but i’m out of my own at the moment and i convinced myself that it was a sign for me to take it. now that i’m home with the bag of weed i am contemplating throwing it away just because you never know if it’s been laced and what not. is that the right thing to do though now that it’s in my possession? is there an easy way to test if it’s regular weed or should i just dispose of it? i also made myself paranoid about potentially being seen taking it by whoever dropped it and being on their wanted list now lmao