I don't think so.

Where could he go to?
Moreover, you must remember that he has got to think of the danger from his comrades too.
He's there at his post.

How could he explain leaving it?
But even if there were no obstacles to his freedom of action he would do nothing.

At present he hasn't enough moral energy to take a resolution of any sort.
Permit me also to point out that if I had detained him we would have been committed to a course of action on which I wished to know your precise intentions first." The great personage rose heavily, an imposing shadowy form in the greenish gloom of the room.
"I'll see the Attorney-General to-night, and will send for you to-morrow morning.

Is there anything more you'd wish to tell me now ?" The Assistant Commissioner had stood up also, slender and flexible.
"I think not, Sir Ethelred, unless I were to enter into details which--" "No.