Statute of Progressive Execution of Penalty Article 55

Prisoners rated Level 3 or higher shall be allowed to receive visitations of and to correspond with individuals other than family members providing such visitations or correspondences shall not obstruct the edification and education of the prisoners.
中文原文 行刑累進處遇條例第55條
第三級以上之受刑人,於不妨害教化之範圍內,得准其與非親屬接見,並發受書信。

English translation for reference only; the Chinese text prevails. Not legal advice.