accel lock break

Accelerator stood before the door of the laboratory.
There was a retinal scanner on it, but he ignored it. He doubted his ID would still work
anyway. Instead, he rapped lightly on the door. He focused the impact of his knock at the
lock, precisely and accurately destroying its metal fitting.
The old, mansion-like door opened with a creak.

- Toaru Majutso no Index Volume 5, Chapter 3 Part 1