"We could call upon the people's help. Let them report those who spread seditious ideas. – After all, it's for

"We could call upon the people's help. Let them report those who spread seditious ideas. – After all, it's for their own good! However, I think the best option would be simply to show that your concern for your own subjects surpasses all else. Consider giving your merchants special privileges, which are denied to foreigners. The latter might object, but this will be guaranteed to maintain national pride.