Taylor Swift Threatened Kanye West with Criminal Prosecution

Taylor Swift threatened Kanye West with criminal prosecution months ago for secretly recording her phone conversation with him … TMZ has learned.

TMZ has a copy of a letter Taylor’s lawyer sent to Kanye’s attorney back in February. The lawyer made it clear, under California law, anyone who secretly records a telephone conversation with someone in the state commits a criminal offense … and it’s a felony.

A source with direct knowledge of the conversation told TMZ it was recorded in an L.A.-area studio. Continue reading at TMZ…