NEW : Security forces can take `` all measures '' against lawbreakers . NEW : Demonstrations are illegal under Shiite and Sharia law . King Abdullah has always encouraged a national dialogue and continues to do so . '' The focus of last week 's protest is a Saudi prayer leader arrested Friday .
NEW : Security forces can take `` all measures '' against lawbreakers . NEW : Demonstrations are illegal under Shiite and Sharia law . The focus of last week 's protest is a Saudi prayer leader arrested Friday .