Is it permissible for a Muslim to design a program for taxi companies in England that includes positive and negative information about drivers—gathered from passenger evaluations and employee monitoring—given the presence of prohibitions and Sharia violations in the operations of these companies, such as mixing (of sexes), khalwa (private seclusion with a person of the opposite sex who is not a mahram), and transporting alcoholic beverages, and then to use this program in a computer exam and subsequently sell it to taxi companies? And would this program be considered backbiting (ghiba)?
There is no objection to creating and selling a program for evaluating the behavior of taxi drivers, because the sin of recording inaccurate information or backbiting falls upon the one who records it. Backbiting for a beneficial purpose, such as giving advice or rectifying corruption, is permissible. The occurrence of objectionable practices in taxi companies does not affect the ruling on the program, which aims to improve services and reduce negative aspects.
Summarized from the full answer at Ftawy · reviewed Sep 2, 2026
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