I've seen this in other countries, where the person asked to leave had authority over outgoing payments, trades, contract signing, critical systems access, etc.

I've seen this in other countries, where the person asked to leave had authority over outgoing payments, trades, contract signing, critical systems access, etc. that sort of thing. If you terminate such a person without some preparation, they can go back to their desk and do mischievous things. That's the idea behind this.