After the death of Marcus Aurelius, the Roman empire slowly started to decline. Potential new emperors began to focus on pleasing the rich Patricians at the expense of the poor plebeians . The resulting decadence was just one reason for the fall of the empire.
(It needs to be pointed out that as the question seems incomplete and lacks more context, the answer might not meet the its standards).
Chem: Microscope
Social : Map finder
Answer:
It would clearly be better to use systematic observation with more naturally occurring offending.
One type which lends itself to this approach is shoplifting.
Three well-known observational studies have been carried out in which random samples
of shoppers were followed through stores by security officers and store detectives.
I think it might be the 3/5 compromise. more context?
