Factual error: Percy Bysshe Shelley's father was a baronet, not a peer. He was Sir Timothy Shelley, not Lord Shelley as he is referred to here.
Factual error: Detective Chief Inspector Kapoor is suddenly shown in uniform with inspector's rank insignia. Detectives never wear uniform (except rarely on formal occasions) and he has apparently dropped a rank.
Factual error: The shoulder patch on the U.S. customs and Border Protection officer's uniform is wrong. The real patch doesn't state Dept of Customs and Border Protection and United States Homeland Security in a smaller circle on the patch. The real patch just states U.S. Customs and Border Protection - U.S. Customs and Border Protection is not a department. Also, the officer doesn't have a name tag on over the right pocket. (00:04:00)
Running with the Devil - S1-E2
Factual error: The show is set in 1982. However the dedicated song on the radio is Mötley Crüe's "Shout at the Devil", which wasn't released until September 1983.
Episode #1.1 - S1-E1
Factual error: The series is set in 1933, as the initial captions show. Yet the locomotive pulling the Orient Express is a JNR Class C58: the C58 series was built starting from 1938 (C58 239 used here is from 1940).
A.K.A Customer Service is Standing By - S3-E4
Factual error: Trish knocks the bad guy into the pool - he sinks to the bottom where Erik can conveniently grab the knife and cut himself free. But bodies don't sink - he should be floating on the surface, still out of reach.
Factual error: The detective constable is addressed as "Sir" by uniformed constables. They actually hold the same rank. Detectives do not outrank uniformed officers in Britain.
Factual error: In the transition shot showing Hobart Building in San Fransisco, items not belonging to the scene are visible and have not been edited out. These items include; modern phone numbers, web addresses for several companies and educational institutions, satellite dishes and American flags. (00:24:10)