Strange behaviour

When the real mother came to get her son back, I Dont get what she was doing? This is what we saw. Biel wakes up when glass breaks and then hears loud radio noises. She walks down to the kitchen where the radio is (I'm not even going to go into the fact that this is not how a federal agent (or whatever she was) behaves. Scratch that I will get into it. A woman with years of expertice in the field would not behave like that. Loud radio noises in the midle of the night is strange and out of place and therefor you are to get your sidearm and put eyes on the prise in this case the child they are responsible over.) At this time by the distraction of the radio noise we can assume the mother gets her son. Biel then she shuts the radio and takes a drink. Finds her partner down (At the very least this is the moment to arm your self and find the boy) She takes the gag of the mouth of the partner and then realizes the boy might be jepordized (duh). Biel runs upstairs (where is the real mother at this point?) then runs back down to untie the partner and then the partner who has lost the ability to talk makes facial exprecions to indicate someone is standing at the door. So where was the real mother when biel ran down the stairs? And why was she just standing at the door waiting for Biel to see her? And why oh why has she covered her face? That kind would have *beep* his pants. You would think she would have showed her own face to the kid so he would co-operate.

Furthermore when Biel pursues the van and jumps on it and then lets go of the van the real mother stops the van and walks to the back of the van opens the doors and goes into the back. We can even see that she has shut the door behind her. We can later see that the van is empty inside. There is no reason for her to get into the back of the van!!