He’s getting a second chance to beat the rap.

A Brooklyn man convicted of helping a killer pull off a 2016 shooting will get a new trial, after a state appeals court ruled that the judge in the case wrongly allowed a dodgy “slang expert” to interpret the suspect’s rap lyrics.

Idrissa Reaves was convicted in 2019 of criminal facilitation, although the jury found him not guilty of the murder at the heart of the case.

On Wednesday, the state Appellate Division Second Department reversed that conviction, ruling that then-state Supreme Court Justice Vincent Del Giudice shouldn’t have allowed the prosecution to prop up a detective inspector as an “unqualified” expert witness capable of interpreting the lyrics in a rap song they alleged Reaves co-wrote about the killing.

Those lyrics inclu

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