What should the brothers do upon discovering pornographic images and films on the personal computer of someone they consider to be among the people of knowledge and fatwa, while not being entirely certain of his responsibility for their presence?

The default is to interpret a Muslim's actions favorably, especially if they are known for their knowledge and virtue. As 'Umar (may Allah be pleased with him) said: "Do not think ill of a word uttered by your Muslim brother unless you find no way to interpret it beneficently."

This situation requires wisdom, and the ruling varies depending on the circumstances: - If there is no harm in directness, then be direct with him using the best methods, highlighting his virtue and status. - If it is highly probable that harm will result, then allude to it by mentioning a similar story. - It is not permissible to dispose of another person's right without their explicit or customary permission.