We asked this question to a criminal lawyer. This was his response.
I have been practicing criminal law for 24 years and have seen a wide variety of reactions by people who are being arrested. Some of these reactions are unwise but understandable. Others are self defeating to the point of being bizarre. No one plans to be arrested, but it might help to think just once about what you will do and not do if you ever hear the phrase “Put your hands behind you.” The simplest “to do” rule is to do what you are told. Simple, but somehow it often escapes someone who is either scared or intoxicated. More important to guarding your rights and interests, here are ten things you SHOULD NOT do.
1. Don’t try to convince the officer of your innocence. It’s useless. He or she only needs “probable cause” to believe you have committed a crime in order to arrest you. He does not decide your guilt and he actually doesn’t care if you are innocent or not. It is the job of the judge or jury to free you if he is wrong. If you feel that urge to convince him he’s made a mistake, remember the overwhelming probability that instead you will say at least one thing that will hurt your case, perhaps even fatally. It is smarter to save your defense for your lawyer.
2. Don’t run. It’s highly unlikely a suspect could outrun ten radio cars converging on a block in mere seconds. I saw a case where a passenger being driven home by a drunk friend bolted and ran. Why? It was the driver they wanted, and she needlessly risked injury in a forceful arrest. Even worse, the police might have suspected she ran because she had a gun, perhaps making them too quick to draw their own firearms. Most police will just arrest a runner, but there are some who will be mad they had to work so hard and injure the suspect unnecessarily.
3. Keep quiet. My hardest cases to defend are those where the suspect got very talkative. Incredibly, many will start babbling without the police having asked a single question. My most vivid memory of this problem was the armed robbery suspect who blurted to police: “How could the guy identify me? The robber was wearing masks.” To which the police smiled and responded, “Oh? Were they?” Judges and juries will discount or ignore what a suspect says that helps him, but give great weight to anything that seems to hurt him. In 24 years of criminal practice, I could count on one hand the number of times a suspect was released because of what he told the police after they arrested him.
4. Don’t give permission to search anywhere. If they ask, it probably means they don’t believe they have the right to search and need your consent. If you are ordered to hand over your keys, state loudly “You do NOT have my permission to search.” If bystanders hear you, whatever they find may be excluded from evidence later. This is also a good reason not to talk, even if it seems all is lost when they find something incriminating.
5. If the police are searching your car or home, don’t look at the places you wish they wouldn’t search. Don’t react to the search at all, and especially not to questions like “Who does this belong to?”
6. Don’t resist arrest. Above all, do not push the police or try to swat their hands away. That would be assaulting an officer and any slight injury to them will turn your minor misdemeanor arrest into a felony. A petty shoplifter can wind up going to state prison that way. Resisting arrest (such as pulling away) is merely a misdemeanor and often the police do not even charge that offense. Obviously, striking an officer can result in serious injury to you as well.
7. Try to resist the temptation to mouth off at the police, even if you have been wrongly arrested. Police have a lot of discretion in what charges are brought. They can change a misdemeanor to a felony, add charges, or even take the trouble to talk directly to the prosecutor and urge him to go hard on you. On the other hand, I have seen a client who was friendly to the police and talked sports and such on the way to the station. They gave him a break. Notice he did not talk about his case, however.
8. Do not believe what the police tell you in order to get you to talk. The law permits them to lie to a suspect in order to get him to make admissions. For example, they will separate two friends who have been arrested and tell the first one that the second one squealed on him. The first one then squeals on the second, though in truth the second one never said anything. An even more common example is telling a suspect that if he talks to the police, “it will go easier”. Well, that’s sort of true. It will be much easier for the police to prove their case. I can’t remember too many cases where the prosecutor gave the defendant an easier deal because he waived his right to silence and confessed.
9. If at home, do not invite the police inside, nor should you “step outside”. If the police believe you have committed a felony, they usually need an arrest warrant to go into your home to arrest you. If they ask you to “step outside”, you will have solved that problem for them. The correct responses are: “I am comfortable talking right here.”, “No, you may not come in.”, or “Do you have a warrant to enter or to arrest me in my home?” I am not suggesting that you run. In fact, that is the best way to ensure the harshest punishment later on. But you may not find it so convenient to be arrested Friday night when all the courts and law offices are closed. With an attorney, you can perhaps surrender after bail arrangements are made and spend NO time in custody while your case is pending.
10. If you are arrested outside your home, do not accept any offers to let you go inside to get dressed, change, get a jacket, call your wife, or any other reason. The police will of course escort you inside and then search everywhere they please, again without a warrant. Likewise decline offers to secure your car safely.