Two weeks ago, you observed Lara smacking another child on the hand and saying 'no' when they tried to take her food. Yesterday you observed her playing with another child, and when they took a toy off her, she shouted no' and smacked them on the lower back. Parents reacted appropriately on both occasions but gave no indication of any issues at home.
Today, during play outside, Lara is reaching up to climb the slide, and you notice a mark on the back of their leg that looks like the shape of a hand.
Is this a safeguarding concern?