both side have big practical mistake.
01- according to the article, the company transecting the money to other company in regular manner. so, why they don't follow secure ways to handle such big value ?? there are many safe ways in Qatar such as bank, western union, telegram, registered money transfer etc etc!!!.
for example, incase if the car occurred with fatal crash when he go to other company or catches fire with some unexpected reasons, or someone notice the usual practice and may trap him into this case... now what the company can do.?? SO, THE COMPANY FAILED TO FOLLOW THE EASY AND SECURE / SAFE WAYS FOR MONEY HADLING.

**again. according to the article, the company would regularly perform to transfer. it means, the company didn't want to use the bank as they didn't like to show the income to the government. is it?

02- after the employee signed on a document, he is fully responsible to handover to other party and he should get the signature on the receiving copy. he has right to check the parcel infront of the first person before he sign on the reliever document.