A Japanese visitor who tried to enter Honolulu Airport with a stun gun in his carry-on bag will not spend any time behind bars.

A federal judge sentenced Hiroki Suzuki Thursday to one year of unsupervised probation which he will serve in Japan.

Transportation Security Administration officials stopped Suzuki, 31, May 14 last year when they spotted the stun gun in a security X-ray machine. 

Suzuki told officials he bought the stun gun in Japan for protection and brought it with him on vacation. His lawyer said it is not illegal to possess a stun gun in Japan. Hawaii law prohibits possessing, selling, giving or delivering stun guns except by law enforcement.

A grand jury indicted Suzuki on a felony charge of attempting to board an aircraft with a dangerous weapon. 

In an agreement with the government, Suzuki pleaded guilty today to entering an airport with a dangerous weapon, which is a misdemeanor.

U.S. Magistrate Judge Barry M. Kurren said he believes Suzuki didn’t intend to harm anyone and probably just forgot to put the stun gun in his checked baggage. He said he didn’t impose any conditions for Suzuki’s probation, other than he should not break any laws, because verifying Suzuki’s compliance would be difficult given the conditions in Japan.