Was Laura possibly (spoiler)
...a spy. It seems at the earlier part of the movie that the crucifix necklace had a small black piece on the back of it.
When the necklace is returned to Laura much later in the movie, this piece is no longer there.
That, connected with the fact that he managed to be snapped in compromising pictures, creates a possible condition for some sort of collusion of Laura with the Enemy(whoever that might represent at anyone moment).
Damion Crowley
All complaints about my post go to Helen Waite.