I am looking for a word (or 2 maybe) that represents a person transporting something securely. I'm looking for something more interesting than "security guard". It shouldn't be tied to him being a driver for example. Please treat the images merely as examples.
Armed Courier (or Messenger, Escort or Guard)
Related article: Armed Courier/Armed Escort
Our clients often have very valuable documents that must be delivered to their accountant, lawyers, clients, or bank every day. RS Executive Protection takes pride in ensuring the safe and secure arrival of your assets to its destination using RS Executive Protection Armed Courier. Some of the courier services we can help with:
- Payroll Deliveries
- Armed Asset Escorts (Domestic & International)
- Precious Metals & Stones (Pick up & delivery)
Related: Armed Forces Courier Service — TFD
A joint service of the Departments of the Army, the Navy, and the Air Force, with the Chief of Staff, US Army, as Executive Agent. The courier service provides one of the available methods for the secure and expeditious transmission of material requiring protected handling by military courier.
- A driver, who is normally never allowed to leave the vehicle until it returns to the garage
- One or two guards who deliver the cash or valuables
Depending on the jurisdiction, the guards are armed. Most guards are issued shotguns, while some carry handguns, submachine guns or assault rifles. These guards are required to have training before they can carry them.
Six member states of the European Union prohibit weapons during cash-in-transit (CIT) operations.
Some are also required to wear bullet-proof vests and sometimes helmets.
I am sending you forty ten-carat diamonds, all of them D-Flawless as you specified, by bonded courier.
courier, Cambridge Dictionaries Online
a person or company that takes messages, letters, or parcels from one person or place to another
bonded, The Free Dictionary
Covered or guaranteed by a surety bond or a fidelity bond
surety bond suretybonds.com
A surety bond is a contract between three parties—the principal (you), the surety (us) and the obligee (the entity requiring the bond)—in which the surety financially guarantees to an obligee that the principal will act in accordance with the terms established by the bond.
In the example I gave, if the courier is hijacked, or absconds with the diamonds, or is hit by a car and the diamonds fall into the sewer system, is it the surety who absorbs the loss. See the link for details on how surety bonds work.
The security arrangements are not specified in this answer. They must satisfy the surety, but they don't have to be the armored car the OP pictured.