Absolutely not. The disciplining of my children is the business of myself and DH, not anyone else.

If it is regards to an incident when I am not present, my belief in my own situation (not anyone else's ) is that if child is not old enough to be told (and understand) "your mother/father will resolve this issue with you" then they are definitely not able to grasp why someone is smacking them.

This is my own opinion in regards to my own children.