1) Ask the coder to develop a system to insert ad code by yourself. 2) View source-code and verify it. My Question to you... If you do not trust your coder, wh

1) Ask the coder to develop a system to insert ad code by yourself. 2) View source-code and verify it. My Question to you... If you do not trust your coder, why do you even allow to code your business logic or what-ever you have?