Salma Hayek knows how tough it is to raise a child while the paps photograph your every move.

Which is why she's agreed to testify FOR Halle Berry in the actor's fight for her right to bring Nahla to France.

According to Perez Hilton, "Halle's lawyers have apparently filed a declaration where Hayek confirms she can corroborate Halle's claims that the paparazzi are unnecessarily obtrusive in the way they handle their snapping beeswax....Hayek, who sometimes lives in France, finds it much easier to spend time with her daughter there without being HOUNDED by paparazzi because of the strict paparazzi laws in France."

THIS SHOULD BE INTERESTING!