Nah... Threats with antiquated warrior societies will most likely fail. Getting someone arrested and tossed in a cell by the real law, THAT would send a message to most people.
Now that's payback, how long would Ali have to wait to get payback, the kid is 5 or 6 and guessing that the legal age for prison is 16 or 18 then that's 10 to 12 years Ali has to concoct her plan, Edmond Dantès would be impressed.
Yes. Cold vengeance on the rocks.
And as for cause... Well, if there is no real dirt, there is always fictional dirt easily achieved with some strategic planting of evidence.
If hot vengeance is desired, however... Get the kid in foster care or some such. More collateral damage, but hey, it's quicker.