Senator Ben Murray-Bruce has challenged Tigran Gambaryan, an executive at Binance Holdings Limited, to take a lie detector test in a neutral country over his bribery allegations against Nigeria’s National Security Adviser (NSA), Nuhu Ribadu.

Gambaryan, Binance’s head of financial crime compliance, was detained in Nigeria from February to October 2024 as part of a federal investigation into alleged money laundering and economic destabilization linked to Binance’s operations in the country.

On Friday, February 14, Gambaryan claimed on X that three Nigerian lawmakers demanded a $150 million bribe in cryptocurrency and accused Ribadu of seeking payouts from Binance for his political ambitions. The Nigerian government has since dismissed the allegations as false and unsubstantiated.

“I have known Mallam Nuhu Ribadu my entire life, and I can say with absolute certainty that he is incapable of the allegations being levelled against him,” the former senator wrote.

“I challenge @TigranGambaryan to undergo a lie detector test if he genuinely believes the claims he has made.”

Murray-Bruce further accused Gambaryan of tarnishing Nigeria’s reputation with baseless accusations and advised him to prepare a public apology for when he fails the test.