supporter liaison officers
... that supporter liaison officers are claimed to be a major factor in the 20 percent reduction of crowd disorder in Swedish football?
... that <b id="mwXQ"><a href="./Supporter_liaison_officer" id="mwXg" rel="mw:WikiLink" title="Supporter liaison officer">supporter liaison officers</a></b> are claimed to be a major factor in the 20 percent reduction of crowd disorder in <a href="./Football_in_Sweden" id="mwXw" rel="mw:WikiLink" title="Football in Sweden">Swedish football</a>?