Brief description
Charles Regis has found the severed hand of one of the victims, and tries to use the fingerprints to unlock a comm terminal. It doesn't work, even if it's "definitely his hand". To gain access, Regis has to use the cooking gel found in the kitchen. The cooking gel is an "exothermic wetware" that releases chemical energy as heat while cooking the food it's mixed with. Setting the cooking gel for (human) body temperature and mixing it with the hand heats it up so that the comm terminal recognizes the fingerprints and allows access.