Falsified expense claim
The accounts dept have just told me that three employees have falsified an expense claim. After questioning, this is what the employees claim happened:
The employees (let's call them Will, Henderson, and Monsieur Passepartout) went out for a lunch meeting, which came to €30. They paid €10 each on their company credit cards. But just as they were leaving, the waiter rushed over and said that they'd been over-charged, and in fact the bill should have been just €25. To reward the waiter's honesty, they tipped him €2 and accepted €1 each which they returned to petty cash.
So they're claiming that they paid €9 each (€10 minus the one returned) plus the €2 tip. But 3 x €9 = €27, plus the €2 tip comes to €29. And their combined credit card account statements total €30 for the lunch. One of them has stolen €1 and falsified their expense claims, but won't admit it. Monsieur Passepartout suspects it was Henderson, who knows the staff at the restaurant.
What can I do in this situation? Can they all be dismissed for theft? They're clearly lying to cover one another.