Probably just to determine if it was still US Government property. After Apollo 11, President Nixon presented moon rock samples as gifts to various countries a

Probably just to determine if it was still US Government property. After Apollo 11, President Nixon presented moon rock samples as gifts to various countries and states. Over 180 of them are now missing, and the FBI investigates people who are allegedly selling them (hint: they're usually fakes) https://en.wikipedia.org/wiki/Stolen_and_missing_moon_rocks https://en.wikipedia.org/wiki/Stolen_and_missing_moon_rocks