Click on a circle in the chart to view Sham immigration records. You can find out when most of the Sham families immigrated to the United States. You can focus your search to immigration records dating from that era. Immigration records can tell you an ancestor's name, ship name, port of departure, port of arrival and destination.
Probably, however...: As my colleague dr. Pappas mentions, marijuana is almost always tested in urine rather than blood, so someone would almost certainly pass a blood test but is more likely to face a urine test.
The important thing to realize is that in saliva, marijuana has a shorter window of detection than other drugs tested for by this product. Marijuana can be detected by a saliva drug test at 97-98% accuracy between 1 and 12 hours after use.Other drugs stay in saliva longer at that extremely high accuracy level (97-99%) , marijuana does not. So this is a perfect test for detecting extremely recent use or if someone is still high on marijuana.arijuana can be detected by a saliva drug test at 97-98% accuracy between 1 and 12 hours after use. Other drugs stay in saliva longer at that extremely high accuracy level (97-99%) , marijuana does not.