When the cash disbursements clerk receives the unsigned check, she examines it to ensure that no one has tampered with any of the information and that no errors have been made. Because she is familiar with all of the vendors with whom Walker deals, she can identify any false vendors or any payment amounts that seem excessive. Assuming everything appears in order, she signs the check using a signature block that displays the name of the assistant treasurer, Tyler Matthews. Only Matthews’ signature can validate a vendor check. The cash disbursements clerk then photocopies the check for audit trail purposes.