Blind lawyer uses his heightened sense and martial arts prowess to fight against injustice in Hell's Kitchen.
See also: Jessica Jones, Luke Cage, Iron Fist, The Defenders, & The Punisher.
Daredevil saves a juror is is attacked by one of Fisk's men on the way home in episode 1x01 "Into the Ring".
Source: MCU Location Scout
From episode 2x07 "Semper Fidelis".
Source: Person of Interest — Wikia