Answer:
An allowance.
Here are some additional controls
For Cash receipts
> Keeping Cash handling and Book Keeping separate
> Daily deposit of cash receipts
For Cash disbursements
> Making all disbursements by cheque (other than petty cash)
> Keeping the Cheque book under lock and key.
> Sign checks only if adequate documentation is presented
> Have only higher-level personnel sign checks (never the bookkeeper!)
> Prepare bank reconciliations.
> Keep petty cash in a safe place.
> Execute Fidelity bonds on employees in positions of trust, such as book-keepers. (Fidelity bonds are insurance policy taken against the risk of dishonesty by employees.)