I see. Are these muslims in the meat industry very dark black people with the lines accross their foreheads?
I have no idea.
Strict Muslim women usually wear a head covering, so their foreheads are concealed.
In Minnesota, female Sudanese meat packers have sued to overturn the state and federal safety laws that pertain to loose fitting clothing that might catch in machinery.
The Sudanese women, as I recall, have also refused to wear zip up coveralls, because they resemble pants, which is forbidden by their religion.