What is the ruling of the Sharia regarding selling state-owned land at a low price due to its seizure by thugs, and being compelled to purchase investment certificates with its proceeds to avoid problems?

It is not permissible to deal with investment certificates issued by usurious banks due to their inclusion of prohibited usury. One must withdraw the funds and repent to Allah. A person should only take their principal, as Allah the Almighty says: "And if you repent, you will have your principal sums. You do not wrong, and you are not wronged." As for the interests and prizes, they must be taken and spent on charitable causes and the general welfare of Muslims. The injustice inflicted upon a person does not justify consuming usury. Funds can be invested in permissible matters or placed in Islamic banks.