I have read Joseph Islam's article on 'Slaughter' here:
http://quransmessage.com/articles/slaughtering%20of%20animals%20-%20the%20correct%20method%20of%20sacrifice%20FM3.htm
I note that the method by which an animal is put to death is specified.
This is mostly done in the context of food, but I presume that it would generally be applicable to killing an animal for any purpose.
If such is the case then unfortunately much of the leather products in my household would likely have been extracted from animals killed in an unlawful manner.
http://quransmessage.com/articles/slaughtering%20of%20animals%20-%20the%20correct%20method%20of%20sacrifice%20FM3.htm
I note that the method by which an animal is put to death is specified.
This is mostly done in the context of food, but I presume that it would generally be applicable to killing an animal for any purpose.
If such is the case then unfortunately much of the leather products in my household would likely have been extracted from animals killed in an unlawful manner.