Premise: Some people will obey the laws if they want to stay out of the trouble with the police.

Premise: Some people don’t go around breaking the law.

Conclusion: Those people will stay out of the trouble with the police.

Attack: From the argument, it treats the premises as the necessary condition to make the conclusion effective. As a matter of fact, the inference is false because it is not only one reason that breaking the law to stay in trouble with the police. It means if people want to stay out of the trouble with the police, there are many ways to do that.