<p>
</p>
<p>The fact that you pay for his education and computer does not mean you are permitted to break the law. Your son is an adult and spying on him is against the law no matter how much you paid for the computer or his tuition.</p>
<p>I am a parent. My rule regarding grades is that my son must provide me with proof that he is progressing towards a degree before I will pay for his tuition. No grade report=no money. You can implement the same rule.</p>
<p>As far as worrying about your son’s drug use you can refuse to pay for your child’s tuition if you think he is doing drugs. You don’t have to pay for college. It is not a law. However, you will need to either trust him, or pull his funding. Spying on him is illegal.</p>