The families of people murdered by Mexican drugs gangs are suing HSBC, arguing the bank can be linked to the killings because it failed to stop cartels laundering the proceeds of their crimes, amounting to billions of dollars.
At the time of a regulatory investigation HSBC apologised for the failings and paid almost $2bn to the US authorities in 2012 to settle allegations that it did not properly implement anti-money laundering rules.
Because there’s a bit of a leap there. HSBC was not proven to have laundered Mexican drug money. It was proven not to have followed the rules that would enable it to prove that it had not handled Mexican drug money. Which is, as neoliberal sophists will note, something rather different.