If he had looked the other way and not investigated he would probably have walked too. If someone at HSBC had investigated what was going on, found out it was

If he had looked the other way and not investigated he would probably have walked too. If someone at HSBC had investigated what was going on, found out it was drug related, and then actively encouraged them to continue then they would probably be facing criminal charges too. Remember he didn't just turn a blind eye, he helped out.