I believe that the Muslim practice of bleeding animals when killing them is essentially the same as ancient Jewish practice. So if there is Kosher meat, why can’t he just eat that? We have enough Muslims on the Government payroll already, without adding yet another to certify the prison diet for two guys.
Kosher does not meet their standard because the main part of halal food is that it must be prepared by Muslims. I guess halal = job security for Muslim food workers.
The difference between kosher and halal is that Muslim foods must be prepared while they preppers pray to Allah, or have prayers broadcast by speakers during it.
Compelling others to pray is not a right.