After Blumkin met with Radek in Moscow, Mikhail Trilisser, head of the OGPU Foreign Section, ordered an attractive agent, Lisa Gorskaya (also known as Elizabeth Zubilin) to "abandon bourgeois prejudice" and to seduce Blumkin. The couple carried on an affair lasting several weeks, and Gorskaya revealed their pillow talk to Trilisser. When agents sent to arrest Blumkin arrived at his apartment, he was getting into a car with Gorskaya. A chase ensued, and shots were fired. Blumkin stopped the car, turned to Gorskaya and said, "Lisa, you have betrayed me!" After his arrest, Blumkin was brought before an OGPU tribunal consisting of Yagoda, Menzhinsky and Trilisser. The defector Georges Agabekov claimed: "Yagoda pronounced for the death penalty. Trilliser was against it. Menzhinsky was undecided". The matter was referred to the Politburo in which Stalin ended the deadlock by declared himself for the death penalty.