Back in high school a buddy of mine had his locker searched by the police, 20 joints were reported, 24 went missing......I didn't smoke them......then who?

Before I knew my rights I had a cop jack a couple pipes and 2g of mine. I was driving with a couple buddies of mine in my neon around 1am, noticed a cop behind me *cherries go on* I end up consenting to a search.
What they found:
2- 2g baggies
3- used glass pipes
1- buster
1- scale
There was also a half O that my one buddy just bought, but he somehow got the container it was in under my car and managed to pick it up when we finally got to leave.

We ended up being "arrested" (no cuffs) I somehow talked our way outa it.

Now, what items went where?
1- 2g baggie - stomped on the ground
1- 2g baggie - with cop
2- pipes - with cop
1- pipe - with us
1- buster - with us
1- scale - with us

Why wouldn't he take everything? Why wouldn't he make us stomp both baggies on the ground, or take both of them? All he took was what he needed in order to get nicely ripped and I'm sure that's exactly what he did.

We got away clean, and for this I'm greatful.