Jean Loring is the worst lawyer I have ever seen on a television program. She objected once when Thea took the stand and was overruled. After that, she didn't bother to object again -- even when Laurel was just blasting her client with allegation after allegation and not even bothering to pretend to be cross-examining Moira.
Totally agree with this. I was puzzled by it too. I couldn't figure out if it was just lazy writing (writers couldn't do five minutes of research) or if they intentionally wrote it that way.
There were at least three times she could have objected and any judge in America would have sustained. Of course, I don't know anything about Canadian law, so it's a chance they didn't know, but I find it highly unlikely that Canadian prosecutors are allowed ask leading questions to non-hostile witnesses or provide testimony.