"No magic." He sets the lock on the desk and slips out of his chair, motioning for Anders to settle there in his stead. "You need to be able to do this blindfolded and bound- not that I propose practicing as such straight away. But this is something you must learn by feel and dexterity- using magic will only call attention to yourself."

Even if templars cannot feel the pull of a spell- other mages might. And other mages are not always on Anders' side.

With a flourish he pulls two picks from somewhere on his person, offering these over for Anders to take. "This is a basic lock- when you can do this with your eyes closed without setting off the bells? We might attempt something more difficult."