On the Second Round.  Deferred raises occur when responder has another suit to bid before the support of the major is shown and where that intermediate bid serves some purpose, usually in a game force or slam try situation.

N	E	S
1©	P	2§*	Two Over One game force.
2¨	P	2©	Deferred Raise.
4©	P	P	North bids the © game.
1©	P	1ª	An unusual Spade call because opener is known not to have 4 Spades or else he would have opened Flannery (2 Hearts).
2©	P	3©	North shows 6 and South can then raise with 2 card trump support.
4©	P	P	North is happy for the raise, showing 2 Hearts & 10+ dummy points.

North	South
ª xx	ª KQJx
© AKQxxx	© Jx
¨ Qx	¨ xxx
§ KJx	§ Axxx