A law (13) that seems to be widely unknown. As requested after my fixture yesterday please find confirmation regarding free kicks. Any free kick (not just a goal kick) taken by a defending team from within their own penalty area has to leave the area to be deemed in play. If the ball is touched a second time before it leaves the area the kick is retaken. If there are still any doubts please follow the link and click on 'infringements & sanctions'. Thanks
http://www.fifa.com/aboutfifa/footballdevelopment/technicalsupport/refereeing/laws-of-the-game/law/newsid=1290870.html