Any trade with enemies is contrary to public order. It is therefore illegal and null and void. However, if a treaty is concluded in peacetime and later breaks out by war, one of two things can happen: either the contract is suspended or it is dissolved, depending on the intention of the contracting parties. Under the law, any agreement that prevents a person from carrying on a legal profession, trade or enterprise of any kind is void to that extent. Which contracts are considered to be contrary to public policy? You will need to check the general principles instead of looking at the individual terms of the contract. Read 3 min Example: A loan from a bank received a loan by pledging certain goods to the bank as collateral. Subsequently, it was found that the goods had either been fraudulently overvalued or withdrawn in consultation with the bank`s employees.