Trees with red round berries (Saint Tropez)?

Question

I desperately need help. Someone accused me of making a child sick by giving her just one red round berry. The berries grow on small trees in Saint Tropez and the fruit are similar to raspberries but rounder and harder. They are tasteless but my acquaintance believes they are extremely poisonous. Is it true? Can you name the tree/fruit?

Answer 1

Reminds me of the Arbutus unedo, or the Strawberry Tree. If so, it isn't poisonous. But unless you know a tree, never eat from it or give the fruits to others.

Have you a picture? It would make it easier to identify.