Is it illegal to use someones photos that they shared with me and uploaded on facebook?

[tkquestion]

Police will do absolutely nothing because it's not a criminal offence, UNLESS they can prove you received the photograph illegally, or your posting constitute an abuse or harassment.

However, they can sue you for copyright infringement - which is a civil offence. Any photograph taken automatically has a copyright by the person who clicked the shutter. They can sue you for the cost of photograph - which is nothing....

By the way, if someone sent you a photograph of personal nature, it would be NICE of you to honor their request and remove the photograph or not use it for your personal purpose. It may be perfectly legal, but what you did isn't a nice thing to do. Law, after all, is a last stop, not the first.