Throw-In Violation

[dblref]

Originally posted by Jurassic Referee
Good question from another forum......

Designated spot throw-in. The thrower, A1, jumps forward and his body is airborne and completely through the plane of the boundary line in-bounds when he releases the throw-in. The throw-in is then legally completed.

Legal? Violation?

Rules citation?

Let's see. Since I just read this on the other board, my guess is it's a violation -- as OMT pointed out.