How did Carlos Ghosn do it?

The former head of Nissan Motor Co. and Renault SA, who was awaiting the first of two trials in Tokyo, somehow evaded almost round-the-clock manned and video surveillance and heavy restrictions on his freedom of movement to flee to Lebanon.

From there, Ghosn released an email Tuesday decrying the "injustice and political persecution" of the Japanese judicial system. The 65-year-old faced charges of financial misconduct and raiding corporate resources for personal gain, allegations he denies.