Toyama Tsujigiro

The Magistrate is a Wano Country government official who lives in the Flower Capital. He is a murderer who attacked strangers at night.

Appearance
The Magistrate is an average-sized man with thick eyebrows and black hair tied in a topknot. He wears a dark blue kimono, light blue hakama and a light blue vest.

Personality
The Magistrate is a cruel individual who murdered random people to sate his bloodlust. He is cunning and remorseless enough to frame an innocent man as the perpetrator and sentence him to seppuku. He seems to hold an interest in high-quality swords like the Meito Shusui, as he was even drooling slightly while holding the sword in his possession.

Abilities and Powers
As the Magisrate, he commands a large number of samurai and has jurisdiction over the Flower Capital.

Swordsmanship
He has some skill with a sword as he is secretly an infamous street slasher who has evaded capture for a long time. In the anime, he is seen practising his swordmanship on a straw dummy and cutting it cleanly in half.

Past
At some point, the Magistrate became a street slasher who murdered people at night. He had claimed three victims in a month when the ronin Zorojuro was caught as the perpetrator.

Wano Country Arc
The Magistrate convicted Zorojuro of being the street slasher sentenced him to commit seppuku. While he was overseeing the sentence, he examined the sword Shusui which he had extracted from the convict. However, he was cut by Zoro using the seppuku knife after the latter deduced him as the true culprit. Zoro subsequently became a wanted criminal all across the Wano Country for the crime of attacking the Magistrate.

Anime and Manga Differences
The anime expands upon the sequence of events leading to Zoro's conviction. The Magistrate is shown killing a man at night before running into Zoro, who decides to confront him. However, a crowd of people soon rushes to the street, which allows the Magisrate to flee the scene while Zoro is mistaken for the culprit. The next day, the Magisrate is seen practising his swordsmanship against a straw dummy before Zoro is brought in. The Magistrate also explains his philosophy that swords become stronger by absorbing human blood.

Trivia

 * Magistrates (bugyō) were samurai officials in feudal Japan.
 * His crimes are referred to as tsujigiri, which is a Japanese term for a practice where a samurai tests the effectiveness of a sword by using it against human opponents. The added scenes in the anime tie in with the notion that the Magistrate wanted to improve his sword's effectiveness.