How do I know if it is safe for my child to go on scout campouts? And I don't mean because of the animals.

Go with him. Become involved in the scouts and the troop. Depending on the age of the child, you may be required to go with him. Or you can go as a parent and chaperone. That way you will have the information you seek and peace of mind.
If You Are Not Sure. Dr. Ruiz-healy's response is excellent. I would add that if you are not sure, do not allow it.