(The following is a slightly modified version of my post in the following thread:
"Being Prepared--What to Do if the Cops Show Up"
There is an old lawyer's adage: "You can beat the rap, but you can't beat the ride." In other words, you might not be convicted of the offense, but you'll not be spared the indignity, expense, and trouble of being arrested for the offense.
Can you say something to a cop to avoid being arrested for prostitution -- that is, without speaking, you'll be arrested, but if you speak, you won't be arrested? As I argue below, I think's it's far more likely that speaking will increase your chances of arrest, not decrease them.
In my view, remaining silent while being questioned will in all likelihood help a person in ALL STAGES of a criminal case -- arrest, charging, plea bargaining, and trial. Under the U.S. Supreme Court's decision in Miranda v. Arizona, a police officer is required to advise a criminal suspect prior to questioning (among other things): "You have the right to remain silent. Anything you say can and will be used against you in a court of law." But that doesn't mean that statements you make prior to being Mirandized (that is, before the cop will say he deemed you a suspect in a crime) can't be used against you then and later -- In fact, your voluntary statements can be used against you in all stages of a criminal case, like heavy stones hung around your neck as you walk a path through the criminal justice system.
Bear in mind that a cop should make an arrest because he/she has probable cause that a criminal offense has been committed based on evidence, but in reality a cop will at times make an arrest based on mere suspicion, not evidence. A cop doesn't have to believe you're guilty beyond a reasonable doubt to arrest you. That decision would be made on another day by a judge or jury. All a cop needs to arrest you is a reasonable belief that an offense was or is being committed. (As an aside, in Texas, probable cause is also all a prosecutor needs to charge you with a misdemeanor or a grand jury needs to indict you for a felony.)
To me, the issue is not whether a person should speak -- it's why they should NOT speak. In my view, a detained person should probably not speak because to do so might create evidence (or suspicion in the cop's mind) that may be used as probable cause to arrest them, by the prosecutor or grand jury to charge them, or as evidence in a trial.
STFU Rule No. 1. You probably can't lie convincingly enough to escape arrest, but you can lie unconvincingly enough to get arrested.
What you say to a cop can be a lie or the truth. Let's consider lying first.
Some of you may think: Hey, I'm smarter than a cop. I can make up a story the cop will believe and he won't arrest me. If you think that, you might as well have 'ARREST ME' tattooed on your forehead (or 'BORN LOSER' tattooed on your bicep) because cops listen to people lie all day and they're pretty good at sifting the wheat from the chaff. While you might have a higher I.Q. than the average cop, chances are the cop's bullshit detector works better than the bullshit producer right below your nose.
Something the cop perceived probably caused the cop to start questioning you. (Example: You're in your car on Harry Hines at 2:00 a.m. with your window rolled down, talking to a SW.) Once the encounter begins you probably can't change the cop's perception of what he saw. Chances are you'll only make matters worse by telling him some cock and bull story. (Example: "I stopped to talk to her because she looks like my next-door neighbor.") You could be Stephen Fucking King and you couldn't weave a believable story under the stress. Also, people don't like being lied to -- it pisses them off. Again, the cop will probably know you're lying. So if you lie you'll not just have a cop in your face -- you might have a pissed-off cop in your face.
STFU Rule No. 2. Don't tell the truth because the cop is not your friend: He's the guy who wants to bust your balls.
Some people think that being cooperative and truthful to the police will lessen their chance of being arrested. They may even naively think that if they volunteer information the cop will think they're a swell guy and won't arrest them. But I can assure you that if a cop has detained you to question you under the suspicion of having committed a criminal offense, if you speak you are not helping to escape arrest -- you are helping the cop gather enough evidence to arrest you. As I've written before, if you're involved in the hobby, a cop is not talking to you to help you -- he's talking to you to gather evidence to be used against you. Under these circumstances, the truth will not set you free -- it may put your ass in Sterrett.
Think of old WW II movies where a soldier would be captured and only give his "name, rank, and serial number." That's like what you should do if a cop questions you. If you're not driving, you're only required to produce ID. That's it. You do NOT have to answer the cop's questions. If you're driving, you're only required to produce ID and proof of insurance. (If you're unlucky enough to live in a state other than Texas, you might be required to produce your registration.) A driver does not have to answer a cop's questions, either.
Are we clear on this, boys and girls?
STFU.