In 1965 they started an investigation into the lyrics of the song Louie Louie.
After 31 months of investigation they reported that they were unintelligible.
Never realizing that the lyrics could be found in the copyright office
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In February 1964, an outraged parent[71] wrote to Robert F. Kennedy, then the Attorney General of the United States, alleging that the lyrics of "Louie Louie" were obscene, and saying that "The lyrics are so filthy that I can-not enclose them in this letter."[citation needed]
The Federal Bureau of Investigation investigated the complaint,[72] and looked into the various rumors of "real lyrics" that were circulating among teenagers.[73] In June 1965, the FBI laboratory obtained a copy of the Kingsmen recording and, after 31 months of investigation, concluded that it could not be interpreted, that it was "unintelligible at any speed,"[74] and therefore the Bureau could not find that the recording was obscene.[2] In September 1965, an FBI agent interviewed one member of the Kingsmen, who denied that there was any obscenity in the song. The FBI never bothered either to interview songwriter Richard Berry or to consult the actual lyrics that were on file with the U.S. Copyright Office.[2][73]
They used to investigate important things.
In 1965 they started an investigation into the lyrics of the song Louie Louie.
After 31 months of investigation they reported that they were unintelligible.
Never realizing that the lyrics could be found in the copyright office
=========
In February 1964, an outraged parent[71] wrote to Robert F. Kennedy, then the Attorney General of the United States, alleging that the lyrics of "Louie Louie" were obscene, and saying that "The lyrics are so filthy that I can-not enclose them in this letter."[citation needed]
The Federal Bureau of Investigation investigated the complaint,[72] and looked into the various rumors of "real lyrics" that were circulating among teenagers.[73] In June 1965, the FBI laboratory obtained a copy of the Kingsmen recording and, after 31 months of investigation, concluded that it could not be interpreted, that it was "unintelligible at any speed,"[74] and therefore the Bureau could not find that the recording was obscene.[2] In September 1965, an FBI agent interviewed one member of the Kingsmen, who denied that there was any obscenity in the song. The FBI never bothered either to interview songwriter Richard Berry or to consult the actual lyrics that were on file with the U.S. Copyright Office.[2][73]
https://en.m.wikipedia.org/wiki/Louie_Louie
Now THATS how you run an investigation!