>that means one of two things: 1) You are a suspect; 2) You are a possible suspect. While I suppose this is strictly true, the far more likely option for 2 is that you're a witness to the crime and you can therefore help that crime be solved. So, in a situation where I am approached by the police to answer questions about something I know I didn't do: 1. I talk, and it helps the police solve a case 2. I talk, and it…
The point of the article (and any similar advice) is that 4 is not possible
The police have a lot more power in any encounter, and there is no way to avoid having them make your life worse. About the only truly concrete advice is that if you are guilty of something then you absolutely, positively must get a lawyer before saying anything at all. The magic words are “I will not answer any questions without my lawyer present,” and any variation from that exposes you to the risk of the police creatively misinterpreting you.
The magic words can help you beat the rap, but they cannot help you beat the ride. If they decide that you are going to jail, then you go with them, and nothing you say or do (or not say or do) will prevent that. And you will stay there until your lawyer shows up.