The most common and most likely answer to this crossword clue is the 6 letter word ABSCAM which also is the latest solution we found used in Boston Globe in 2010.
1970s FBI investigation crossword clue answers
Here's a list of possible crossword answers ranked by the most likely to least likely.
| Answer | Likelyness | Letters | 
|---|---|---|
| ABSCAM | 100 % | 6 | 
Words with a meaning similar to the clue: 1970s FBI investigation
These words may or may not be a possible solution to this crosswords clue.- undercover
 - abscam
 - age
 - log
 - era
 - roe
 - containment
 - duster
 - est
 - hustle
 - imagine
 - kiss
 
Crossword Answer definitions
More crossword clues leading to the same solutions
Here's a few more crossword clues - all leading to the identical solution