It mentions the word 'expect', so 'suppliers comply with laws' is not considered.
pg. 2
“We have a code of conduct which sets out a number of principles we expect our employees and suppliers to comply with. These include statements that all employees shall be free to choose their employment and shall not be forced to work against their will, and that there shall be no forced, bonded or involuntary prison labour or human trafficking.”
Since, there is no mention that the terms and conditions are required to be signed by the suppliers, we have not considered the same.
Pg. 4
“Our supplier terms and conditions require compliance with the Modern Slavery Act and we expect all major suppliers to have suitable anti-slavery and human trafficking policies and processes in place.”