Assalamualaykum. There was a fatwa put up some time back regarding transactions with non-Muslims and the regulations being less strict etc.
بِسْمِا للهِ الرَّحْمنِ الرَّحِيْم
In the name of Allah, the Most Gracious, the Most Merciful
Wa alaykumus Salaam. I am not aware of the fatwa you are referring to, but transactions for Non-Muslims (Dhimmi) is less strict compared to Muslims. For example, they can buy, sell, and trade with wine and swine, which is not permissible for a Muslim to do because wine and swine are considered to be wealth for them and not for Muslims.
Only Allah knows best
Written by Maulana Mohammed Kamran Abid
Checked and approved by Mufti Mohammed Tosir Miah
Darul Ifta Birmingham
 Al-Hidayah, vol. 5, pg. 90, Maktaba al-Bushra