The Ruling on Frozen Chicken

Question :

What is the ruling on meats imported from abroad and also frozen chicken about whose slaughter we do not know anything, since some of the scholars do not encourage buying them?

Answer:

If the above-mentioned meats were imported from the lands of the People of the Scripture, then it is permissible to eat them, as long as you do not know of anything which would be an evidence for its prohibition, based upon the Words of Allah, Most High:
"Made lawful to you this day are At-Tayyibāt [all kinds of Halal (lawful) foods, which Allah has made lawful (meat of slaughtered eatable animals, milk products, fats, vegetables and fruits)]. The food (slaughtered cattle, catable animals) of the people of the Scripture (Jews and Christians) is lawful to you and yours is lawful to them."

The fact that some slaughterhouses in certain countries of the People of the Scripture slaughter the animals in a manner contrary to the Islamic Law does not necessitate the prohibition of slaughtered animals imported from the lands of the People of the Scripture, unless it is known that, that particular animal is from a slaughterhouse which does not slaughter according to the Islamic Law. Because the basic principle is permissibility and validity, unless something which necessitates otherwise becomes known.

Source:
Ibn Baz
Fatawa Islamiyah, Vol. 6 Page 280