Well to be honest about it during any investigation ( not just this one ) you should never submit to an interview without your lawyers consent and only with the lawyer present. Any honest detective will tell you the same. I know this isn't exactly the same, but I think the same rules should apply.
Don’t Consent to Anything
No matter what the situation is, if you consent to something the officer will have more rights. An officer that comes into your home with your consent has basically the same rights as your mother-in-law coming for a visit. Once they are given that inch, it often become a mile.
If you give your consent, an officer might then observe something that could raise the evidence level against you to reasonable suspicion or even probable cause. That’s why in order to reduce the likelihood of a preventable detainment or arrest, you should avoid voluntarily consenting to anything. No matter what the officer says, you don’t have to consent.
5. Don’t Talk Too Much
You don’t have to say anything either. As the saying goes, “anything you say can be used against you in a court of law.” In most situations, the less you talk the better.
Officers are often very good at wrangling some kind of half-baked confession out of you that could raise the evidence level up a notch. Don’t fall for it. If you want to respond, keep it short. If you are worried or anxious, or you suspect the officer is digging for something, just stay quiet. People often talk their way right into a jail cell.