ANSWER:

If you don’t know what’s inside the packages then no problem. If you assist on packing and loading haram packages, this is sinful.

I work in warehouse where I handle packages. And there’s halal packages & haram packages(like cat food etc.). Almost everyday I go to work I see a mix of halal & haram packages. I try to avoid the haram packages. So in the beginning of work before the packages arrive, I open the truck to store packages in there, & i set up the machine that moves the packages in the truck, will I get the sin