-The issuing authorities or governorates may cancel a visa if: a) it is determined that the visa is subject to forgery; b) there is erasure, scraping, or alteration on the visa; c) the visa holder is barred from entering Turkey; d) there is a strong suspicion that the foreigner may commit a crime; e) the passport or travel document is false or expired; f) the visa or visa exemption is used for purposes other than those intended.