I Need Help

My husband has been in out of recovery his whole life for alcoholism and drug addiction. As long as I've known him I have never seen him drink or do drugs until now. I have been seeing symptom's of drug abuse emerging. Nothing tangible just deceitful behavior regarding finances and the significant changes conducive to usage of heroin.
How do I approach the subject with him regarding my concerns? I want to try to get him on the right track if I can as soon as possible.
Thank you in advance
Just like that. Tell him out of pure honesty of all that your heart feels. And if your worried about telling him and his anger erupts then before you speak to him with this subject then maybe say first to him that "to not get angry, ur not trying to start an argument, your just trying to remind him that you love him and your here for him through thick and thin and also because you only want the best for him and your family. And what he's going through isn't the best option for your family and something has to change for the good of things to change and get back on track".
I don't know, what do I know, I'm not married and never been. Sorry I'm not any help for you. But you most likely are going to have to do the narc anon or alc anon. I think that's the proper name. Sorry again.. Good luck anyways.