Deuteronomy 12:15

So, if you wish to eat, and if the eating of flesh pleases you, then kill and eat according to the blessing of the Lord your God, which he has given to you, in your cities: you may eat it whether it is unclean, that is, having blemish or defect, or whether it is clean, that is, whole and without blemish, of the kind which is permitted to be offered, such as the roe deer and the stag.