‘Frisk’ con gets new trial

A gangbanger slapped with nearly 20 years in the slammer after a stopandfrisk in Queens won a new trial yesterday because a cop who testified against him had given testimony that was “unworthy of belief ” in a similar case.

In a 2to1 decision, a Manhattan federal appeals court said Lance White’s public defender was wrongly prevented from crossexamining an NYPD detective about the cop’s earlier, “discredited” testimony.

“Evidence that might lead a jury to conclude the officer was willing to lie in a similar case in order to secure a criminal conviction is . . . relevant . . .” wrote Judge Guido Calabresi.

White, a Bloods associate known as “King,” was convicted of being an armed career criminal after he was caught carrying a loaded, .380caliber handgun on his way to sell it to an undercover cop as part of a joint FBINYPD sting in 2008.

But the appeals court said Brooklyn Judge Nicholas Garaufis “erred” when he ruled that the prosecution’s main witness, NYPD Detective Paul Herrmann, couldn’t be questioned about another gunpossession case. In that case, the evidence was tossed because a different judge said Herrmann gave an “inconsistent” account of the bust.

The dissenting judges accused their colleagues of conducting their “own evidentiary analysis.