Also on Tuesday, Japan’s land and transportation minister, Kazuyoshi Akaba, said the authorities on Monday said that major airports with terminals for private jets would be required to inspect large baggage items that pass through them. The stepped-up measures followed reports that Mr. Ghosn escaped through Kansai International Airport in Osaka, Japan, while hiding in a large box that was loaded onto a private aircraft.
Japanese officials have also said that they confiscated the 1.5 billion yen, or nearly $14 million, in bail Mr. Ghosn forfeited when he fled the country.
Mr. Ghosn was first arrested by the Japanese authorities in November 2018 and ultimately charged with four counts of financial wrongdoing while running the vast automotive empire. Mr. Ghosn has denied the allegations and said he was set up by Nissan executives who feared that he would more closely combine the operations of the major Japanese automaker with its French partner, Renault.
On Tuesday, Nissan broke its silence on Mr. Ghosn’s flight, saying in a statement that an internal investigation found “numerous acts of misconduct” and it could continue to cooperate with the authorities in investigating him.
“Ghosn’s flight will not affect Nissan’s basic policy of holding him responsible for the serious misconduct uncovered by the internal investigation,” it said. “The company will continue to take appropriate legal action to hold Ghosn accountable for the harm that his misconduct has caused to Nissan.
Even after Mr. Ghosn was released on bail, Nissan kept monitoring its former chief, the Japanese news media has reported. The reports said that the surveillance stopped shortly before Mr. Ghosn fled.
Junichiro Hironaka, one of Mr. Ghosn’s lawyers in Japan, said he noted that the former Nissan executive was under surveillance and filed a criminal complaint with the police on Dec. 27, without specifying a target of the complaint. In a brief interview, he said he did not know whether his complaint led to the cancellation of the surveillance.