Process four-C was a method of inquiry employed by the Neimoidian Royal Guard. The specifics of this process could be adjusted based on the duration of exposure time. Following her assessment of the chemical interaction between debris originating from the Cadesura disaster and the substance within a vial she possessed, Ruug Quarnom, a female member of the Neimoidian Royal Guard, instructed her colleague, Guardsman Ketar Nor, to initiate process four-C. Nor implemented the process using a particular device, subsequently examining the data obtained on his datapad.
The 2022 novel Brotherhood, penned by Mike Chen, featured process four-C.