Transfer

Transfer, or robotization, was the Dalek operation of surgically modifying humans into servile Robomen.

The Daleks attempted to use the procedure on the First Doctor but he was rescued. They selected him for transfer after he displayed a greater intellect than those of other prisoners. (TV: The Dalek Invasion of Earth) The process was called "robotization" by the Martians, who came to know of it during the Dalek invasion of their planet. (PROSE: What To Do If A Dalek Attacks You!)