... any person who has committed any act of disloyalty to the state , including acts amounting to subversion , insurrection , rebellion or other similar crimes , shall not be qualified to be a candidate for any of the offices covered by this act , or to participate in any partisan political activity therein : provided that a judgment of conviction for any of the aforementioned crimes shall be conclusive evidence of such fact and the filing of charges for the commission of such crimes before a civil court or military tribunal after preliminary investigation shall be prima fascie evidence of such fact .