I watched season 4 on Amazon Prime Canada.
As good as any of the first 3 seasons, this one is 100% on Rotten Tomatoes.
… when an attorney is murdered on the eve of his civil rights trial against the LAPD, Bosch is assigned to lead a Task Force to solve the crime before the city erupts in a riot.
Bosch must pursue every lead, even if it turns the spotlight back on his own department. One murder intertwines with another, and Bosch must reconcile his past to find a justice that has long eluded him.
Season 5 is in the works. This is Amazon’s longest running series so far.