By compartmentalizing his mind, the mage can make it so that even he does not remember certain thoughts hidden within his mind (whether temporarily or permanently), allowing for convincing lies to even a polygraph
The mage partitions parts of his consciousness off, subtracting one die per success from others’ dice pools for rolls undertaken to detect specific lies he might tell. In other words, he could choose to hide the fact that he killed a member of his cabal by obfuscating his memory of the event, but couldn’t conceal every truth he knows at one time.
Free Council Rote: Bastion of Thought
Advancing the science of magic is not always honest work. Members of the Free Council use this rote to conceal the unsavory business in which they must occasionally indulge.