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.
THC and other major chemical compounds in Marijuana (like THB) are fat soluble and stored in the bodyâs fatty tissue. Hence you canât âwash it outâ. For regular users THC can be detected in the blood up to 7 days. In hair samples it can be detected up to 90 days. In urine 24â48 hours.