Engram Monitor

To prevent Crimson Marrow from being smuggled out of the mine, the Creed stationed monitors inside the tunnels.
These monitors use a modified piece of Bapharian Legacy to measure the Engram content in extracted ore. If the reading exceeds a set threshold, the device triggers an alarm.

Tests show the Engram Monitors are indeed effective. However, the clues we found suggest that royal researchers from Byrnhald have still been able to access Crimson Marrow, which means there must be some oversight in the mine management.