Split-Second

 Split-second (ほんの一瞬の, Hon'no isshun no) is the ninth and final chapter of Volume six and 52nd chapter overall.

Plot
L tells the director of the NPA to send out units to capture Higuchi in his car. However, no police officer should get too close without something to shield their face. Then, L orders Soichiro, who is at Sakura TV where they’re filming the special, to proceed with their emergency plan. Soichiro must replace Matsuda and the interviewer with mannequins and run pre-recorded audio that will make it seem like the interview has not stopped. Light and L leave the headquarters on a helicopter in order to follow Higuchi’s whereabouts.

Higuchi goes back to Yotsuba building in order to try and find security camera footage of Matsuda. However, Wedy has already disposed of all security camera footage of Matsuda. Desperate, Higuchi decides to go to Sakura TV and kill him in the studio.

At the Sakura TV studios, Wedy, Soichiro, Mogi, and Aiber are waiting for him hidden behind a piece of set scenery. When Higuchi finds out that Matsuda and the interviewer have been replaced by dummies, he is immediately ambushed by the team. Higuchi shoots Soichiro in the shoulder with the gun he secretly packed and flees to his car. He speeds through the highway and realizes that he has been cut off by a blockade of police cars. L and Light with Watari and his sniper rifle join the chase in the helicopter. He tries to escape, but Watari shoots down the car and makes it crash on to a wall. Then, Higuchi puts his own gun to his head and threatens to kill himself. However, Watari quickly shoots the gun away from his hand.

Conception
Ohba said the chapter's title "Split-Second" relates to Watari preventing Higuchi from committing suicide by shooting his gun out of his hand. It also refers to when Soichiro jumped in front of Wedy to take Higuchi's bullet.

Chapter Guide
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