“detain them until hearings...at one of our bases in saudi arabia”.
How about Guantanamo?
Give them rations, a map, directions to mainland Cuba, and a life jacket...
Or fly them to Dubai, where they can replace Bangladeshi slaves?
We don’t have any bases in Saudi Arabia and never did. We use their bases and facilities.
Was weird driving to the airport and seeing a flatbed truck with a large iron cage on the back. Looked like something from a post apocalypse movie. The people in the cage were deportees. They had first priority on flights out of the country. Westerners and Saudis do get bumped off flights occasionally to make room for deportees.
If you overstay your visa or are in the country illegally they will find you and deport you. The process is they find the deportees and put them in jail. Then they arrange for the next flight out of the country with the cage truck as their ride. Whole process only takes an average of a few hours. We can learn that part from them.