What is your objective? BSA compliance?
Some thoughts:
-ensure required recordkeeping information is recorded/retained for cash purchases of $3,000 to $10,000 (make sure if bank policy is to deposit cash first and then withdrawal to make a purchase that these are still treated as cash sales for BSA recordkeeping purposes)
-if your bank policy is not to sell to non-customers, ensure adherence to the policy
-ensure controls are followed regarding receipt and/or destruction of negotaible instruments(will depend on bank procedures as well as the vendor's procedures/requirements - for example, if you sell amex gift checks they may have procedures for receiving deliveries [dual control, verify count] and destruction)
-ensure proper controls are in place regarding negotiable instrument inventory (dual control, periodic inventory, logs, etc. - some of this will depend on your bank's procedures)
-if bank policy is to perform an OFAC scan on purchaser or payees, ensure procedures are being followed.
I hope this helps.
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* My opinion is not necessarily that of my employer.