Togusa (Japanese: トグサ) is the second most prominently featured male character in Masamune Shirow's Ghost in the Shell manga and anime series.
Brought to the team by Daisuke Aramaki from the Keishichō, Togusa is an asset for "his new perspective, human intuition and analytical skills for their investigation of cyborg crimes."
In the manga he tends to be very emotional and plagued with feelings of failure; in the films he is savvier but still aware of his inexperience, and in the Stand Alone Complex his personality is a combination of the two.
His history as an uncorrupted detective is one of the reasons he was recruited (as well as his being a family man), to add an element of variety and unpredictability to the team.
He is very fond of his archaic Mateba Autorevolver, opting to use it over the standard-issue Seburo M5 even in the field, citing that it cannot jam and that "six bullets is enough to get the job done", a decision which everyone inquires about occasionally.
Togusa is introduced in the 1995 film by Mamoru Oshii right at the beginning in a short scene in a surveillance van with Batou, but he is not identified.
Togusa's police instincts come into play later, when he suspects something untoward involving Section 6, leading up to the theft of The Puppet Master.
In Stand Alone Complex, several episodes involving an illegally used wiretap called an Interceptor refer to his background as a detective in the police force and his subsequent recruitment into Section 9.
Since they can hack into government records without being discovered, it is safe to presume that they would have no problem working around surveillance, and therefore should have been able to alert Togusa to the section's survival.
Their failure to do so resulted in Togusa suffering a minor psychological break, attempting to assassinate one of the perpetrators in the Laughing Man case, which would have been detrimental to the protection given to him.
He dismissively refers to one of them as "just a machine", prompting outrage from the Tachikomas in the Section 9 hangar, with one calling him a bigot and another demanding a retraction of the statement.
The contentious relationship continues in Second Gig, when Togusa and a Tachikoma go on a mission to abandoned Tokyo and the goofy little tank serves to mostly get under his skin (before saving it).