Your senses are reeling all the time. Finally you find something to write and the very next day you go out and see something else which totally contradicts what you've written and every conclusion you've come to.
New York cops are very specific in terms of the way they talk and the way they handle themselves. All these cliches that, as an Englishman, I thought were from a bygone era or were a bit of poetic license with cop shows - the more you hang out with them, the more you realize how real that jargon is.