When should the anti-money laundering risk assessment be updated?

A businessman requests a European private bank to open a numbered or alternate name account. According to the Basel Committee on Banking Supervision principles, which of the following is the most important question the banker should ask?

A profitable commercial customer who operates an import-export business has multiple accounts with the same institution at branches m different locations. The customer receives funds from a jurisdiction perceived as highly corrupt according to Transparency International ratings. The customer makes frequent transfers among the accounts and prefers to manage the accounts separately. What should the institution do to mitigate the risk associated with these accounts?

A law enforcement agent calls a bank anti-money laundering investigator for supporting information about a suspicious transaction report that was filed the previous month.
How should the investigator respond?

What is one of the indicia of a Black Market Peso Exchange?