A bean counter at a large firm I once worked for demanded receipts for every little thing.
Pratt was quite happy with receipts he could not possibly read, written in Thai, Russian, Zulu etc. Kept all his beans in a line I suppose.
I vaguelly recall a tale of a hapless SAC (or Cpl) who found a receipt from a trip to Norway and decided to claim on the back of it, having lost his own receipts and in need of money.
Trouble was, that his countersigning officer (RAF) knew Norwegian...1771 was resubmitted without receipt!
The system the civil service use seems to work for them and they are larger than the Armed Forces! Could I see our lords and masters simply transferring the system across without introducing various hoops to jump through? Not really....