I want to know the answer to the following question:
In what decade did the LEAA conduct their investigation of crime and DST?
All the background I'm provided with is that "However, the LEAA did not filter out other factors, and it examined only two cities and found crime reductions only in one and only in some crime categories; the DOT decided it was "impossible to conclude with any confidence that comparable benefits would be found nationwide".". Is that enough to answer the question?
Answer: no