"And why did Gillian Anderson's character have to go wandering off in the forest on her own?"
If there was vehicle access to the location where the car had been abandoned, why didn't they just drive there?
It always amuses me the way SOCOs get dressed in nylon overalls before the enter the crime scene, but the lead characters walk in there wearing civvies, and start pawing everything.
Then there's Silent Witness, they'll handle a Dictaphone with gloves that have just been rummaging in a stiff, and then take the gloves off and pick up the Dictaphone again.