If you freeze meat well, you can still eat it even a couple days after expire date.
Freezing extend the life of meat, allowing you to still eat it and still safe.I do it all the time, especially if I "don't feel like chicken today" 
You should still take care, maybe if your freezer wasn't closed for a night or so because you forgot it, you should consider throwing all meats away 
You can see or smell the meat if it's good to eat or you needed to throw it as it will only harm you in terms of your health concern. You should still take care, maybe if your freezer wasn't closed for a night or so because you forgot it, you should consider throwing all meats away