Why do they say "will be used against you in a court of law" when it's not true?

They don't always. The longer version that asks "Do you understand?" after every statement of rights just says "may be used against you in a court of law". The short version was written by Harold Berliner and someone else, Berliner was a printer and put it on wallet-sized cards for easy reference which is how the wording spread so fast. Why it's worded that way, though, I don't know.

I read a British murder mystery a million years ago in which the detective (a police detective, not an amateur) made the point that while Americans say "used against", the British just say "used in a court of law". I have no idea how accurate that is, but it stuck in my head as a point of interest.

Shrift, I'm working in your vicinity again. I'll be here through next week if you want to catch a meal sometime.

Yay, that would be awesome! Is dinner still a better option? The only days I can't go are Monday and Tuesday next week, because I'm heading to Wicker Park immediately after work for some hilarious dance party concert action.

I has new hair! These pictures will explode in about 24 hours:

[link] [link] [link]

ETA: I have a bare nape! Somebody alert Hecubus.

If this text is accurate:

The person in custody must, prior to interrogation, be clearly informed that he has the right to remain silent, and that anything he says will be used against him in court; he must be clearly informed that he has the right to consult with a lawyer and to have the lawyer with him during interrogation, and that, if he is indigent, a lawyer will be appointed to represent him.

my question stands--what the defendant says may be used against him. Why say "will," then?

What I've noticed recently in British shows is that they say (paraphrase horribly) that they won't be too impressed if you come up with a good defense later rather than sooner.

Oh, shrift's hair has sass! Between just general baldness on my part and actual cool haircuts on yours, Hec must be having quite the week.

Oh, nice cut!

From [link]

The following is a much more verbose Miranda warning, designed to cover all bases that a detainee might encounter while in police custody. A detainee may be asked to sign a statement acknowledging the following.

You have the right to remain silent and refuse to answer questions. Do you understand?
Anything you do say may be used against you in a court of law. Do you understand?
You have the right to consult an attorney before speaking to the police and to have an attorney present during questioning now or in the future. Do you understand?
If you cannot afford an attorney, one will be appointed for you before any questioning if you wish. Do you understand?
If you decide to answer questions now without an attorney present you will still have the right to stop answering at any time until you talk to an attorney. Do you understand?
Knowing and understanding your rights as I have explained them to you, are you willing to answer my questions without an attorney present?

All I can figure is that Berliner and the other writer put in "and will" to emphasize the jeopardy that the questionee was in and then it got institutionalized. But that's speculation.

shrift, that's a great cut for you! My stylist had something similar and I was envious (the stuff around my face is too short and has too much wave to it.)

Nice cut, shrift!

Very nice, shrift! (sometimes I still have weird moments realizing that you have a government name that's not shrift.)

Oooh, oooh, what kind of case? Also, where are you in Queens and who is the judge?

Well, I'm in Kew Gardens, so it's criminal, but I'm not supposed to say in detail, right? The judge is Robert (?) McSomething. Along those lines anyway. He looks like an actor, but I can't think of who. Kind of a white-haired Radar O'Reilly type, but that's not really who I'm trying to think of.

LOVE your cut, Shrift! Also, you = Hott.

(sometimes I still have weird moments realizing that you have a government name that's not shrift.)

That is a scurrilous lie. We all know she's shrift.

Now I have hair angst. I'm tempted to throw myself into my stylist's hands tomorrow, except I'm a little scared.