 Non @-@ Muslim groups can own their own houses of worship , where they can practice their religion freely , by requesting a land grant and permission to build a compound . Groups that do not have their own buildings must use the facilities of other religious organisations or worship in private homes . Non @-@ Muslim religious groups are permitted to advertise group functions openly and distribute various religious literature ; however , outright proselytising is strictly prohibited under penalty of criminal prosecution , imprisonment and deportation for engaging in behaviour offensive to Islam . Strict prohibition extends to small groups such as the Ahmadiyya . Catholics have no proper jurisdiction in the UAE , but are served pastorally by the Apostolic Vicariate of Southern Arabia . 
