How to solve the issue of trust and security in delivery?

Question

Delivery

There is a certain system with certain business logic related to goods. At some stage N , the task passes to the courier, and he delivers the goods.
There was an interest to introduce online registration of such couriers so that after registration they can download a mobile application and immediately start delivering goods (receiving delivery tasks).
How safe is it in terms of trusting couriers? Has anyone practiced this? I mean that a cunning courier can "pocket" the goods for himself, and hide himself.
Tell me, please, how are such moments solved? Will the indication of passport data and a photo in the registration form help to solve the issue of trust? But passport data can now be specified left.
Or is it still better for him to come to the office to "look" at him?
Thanks in advance!
*UPDATE: during registration, he links his bank card. From each order, compensation is automatically transferred to him. You don't have to go anywhere to get a job.

Answer 1

If you make constant payments from card to card for many couriers, you should not have problems with the tax, that is, you should work in a white or gray scheme. It is better to consult knowledgeable people.
The main thing you need from the courier is his data. He can come to your office once to give all the necessary documents, you register him in the application and then he works independently. In case of theft, you will have all his data with which you can contact the authorities.