while your remark is generally true, it seems that specific non-allowable practices on the floor would be in writing.As mentioned above ,it varies .I'm sure the answer is in the Code of Ethical Business Conduct,he should read it.
That being said, my old job own "Code of Ethical Business Conduct" wasn't clear cut and I could never get a straight answer . Plus nobody wanted to attach their name to the answer to my questions regarding the companies "Code of Ethical Business Conduct"
Make sure your friend is 100% sure of his company policy ,it could cost him/her their job. I would get it in writing.
