If it's legal in the state/county/parish where you live, more power to you. I live in Jasper County, TX and it is illegal to trail a wounded deer with a dog but there are many counties in TX where it is perfectly legal to do so.
If it's illegal in the state/county/parish where you live and you do it anyway, yep you are breaking the law. Call it what you will, poacher, outlaw, criminal.....bottom line is you are breaking the law.