Hello again. As I said, I am now working on a new episode, which is
interesting because it starts off with Briscoe and Green working on a
20-years-old case (because Van Buren's job is in jeopardy due to a
low clearance rate on homicides).

The first doubt I have is on some kind of jargon expression (I
think). An old cop B&G are interrogating on an old case says he was
demoted because he disagreed with the lead detective over who the
suspect was. He says: "I went over his head to a Captain, a week
later, I'm walkin' a foot post in Washington Heights. Could've got
back on the squad if I'd wanted, but the truth is, I'd rather be in
uniform. Too much politics in bein' a detective". My problem is with
the "foot post"... what does "walkin' a foot post" mean? I take is
some kind of humbler assignment as opposed to being a detective, but
it beats me...

Also there's a character called "Paralegal" who says "Every do-gooder
in town's jumping on the Sarno bandwagon... Amicus briefs on the
motion to suppress. AA, ACLU, AMA". I know who these last three
acronyms are, but "Amicus"? And what exatly would a paralegal be?

Alberto