[mbyron]

Originally Posted by michrefdh

Force that put the ball into the endzone was the throwing team, which I think is the main factor in determining touchback or safety. Defender caught the ball in the endzone, still a live ball in the endzone, but the force putting it in the endzone was the offense not defense. When he throws the ball forward, it is an illegal incomplete forward pass (if the opposing team would have caught it, its theirs because its still live till it hits the ground). But since it went incomplete, it became a dead ball with the spot of enforcement the point where he threw the ball, which is still in the endzone. But because the force into the endzone was still originally applied by the other team, its still a touchback and the penalty is enforced from the 20.

Anybody else have any opinions? Not saying I'm right, just my understanding of the rules.

Your answer seems to ignore the COP.