Over the past several years, the Livermore Forensic Science Center has conducted analyses of nuclear-related samples in conjunction
with domestic and international criminal investigations. Law enforcement officials have sought conventional and nuclear-forensic
analyses of questioned specimens that have typically consisted of miscellaneous metal species or actinide salts. The investigated
activities have included nuclear smuggling and the proliferation of alleged fissionable materials, nonradioactive hoaxes such
as “Red Mercury,” and the interdiction of illegal laboratories engaged in methamphetamine synthesis.