They mention they "seek assurance from all our supplier contracts that they do not engage in any conduct prohibited pursuant to the Act." however this does not describe which approach they take. (p2, Supplier Contracts)

"The Bank continually assesses its policies and procedures and its suppliers in order to identify any risks faced by the Bank in relation to modern slavery and human trafficking, to be reasonably assured that these risks are monitored and to ensure that appropriate controls are in place to mitigate each risk to an acceptable degree"

- Again, does not describe the controls they have in place (p2, Monitoring)