Justin Bieber -- Here's the Drug Evidence

An L.A. County Sheriff's spokesperson says their deputies saw no drugs when they raided Justin Bieber's house and there was no smoking room as we previously reported ... well then check this out.

First let's deal with the smoking room. Here's a picture of that room. Justin and his pals call it the Bob Marley Room. There are lots of bongs, and they were in plain veiw when deputies descended on the property. (The photo above shows Lil Twist -- who's not connected to Lil Za's drug bust.)

As for other drugs ... as we said, Justin had 2 big cookie jars of weed displayed in the house. And as we said there were 4 to 5 empty codeine bottles laying around ... as well as the styrofoam cups used for sizzurp (lean).

It's unclear why the spokesperson is going on record when we know the stuff was inside the house (not to mention the smoking room pic). But, as we said, deputies did nothing wrong. The search warrant was for video equipment, and as one top law enforcement official told us ... they weren't looking for drugs.

Period.