Well, I am a lawyer, although not a crminal lawyer. I took that Constitutional class and dimly remember that there was a difference between searching the trunk and searching the interior, although what the exact difference and why eludes my memory. I could refresh my memory, but then I would forget again.
I'm a 98 grad of a top 30 school. The matter was settled about 15 years ago. I'm at home now and don't have the cite. But I can search for it tomorrow if you wish. EDIT: settled in 1991, Chadwick was the old case that protected a locked area, and Acedvedo overruled it:
http://www.druglibrary.org/schaffer/legal/l1990/Acevedo.htm
There are quite a few more cases explaining the nuances, but I don't have access to anything but google type research here.
I'm much better with holdings than case names. Many things elude my memory, but I've done enough suppression hearings that the basics are well etched in my thick skull. Frisk= reasonable suspicion of weapons and includes passenger compartment including unlocked areas, but not the trunk or locked containers. Search= equals pc and includes the entire car including locked trunks or containers.
Sigh. Nemoaz, please get off your high horse. The cop requires probable cause to search your car. I never said he needs a warrant.
High horse? I don't ride horses, and I'm trying to help. Moreover, that wasn't directly in response to you, There have probably been a few dozen posts about "getting a warrant." And I will repeat again that there is never a time that anything in your automobile (assuming it's mobile, not a RV that is immobile) will require a warrant. If you demand one, you only look foolish. If try to impede the officer because you think you have the right to one, you won't like the results.
A Terry frisk of your person does not require probable cause.
Nope, it requires reasonable suspicion. But it does include the authority to search anything within the passenger compartment.
Therefore, a Terry frisk does not include the authority to search your car or to force you to open it for him. If your car is locked, he requires PC to force you to unlock it.
Michigan vs. Long. They may pull you out of the vehicle, then frisk the passenger compartment.
http://supct.law.cornell.edu/supct/html/historics/USSC_CR_0463_1032_ZS.html
Again, there are more specific cases that I cannot research effectively here at home. However, turning around and locking the car won't diminish the officer's ability to frisk the passenger compartment at all. And I think the goverment would argue that YOU caused the damage by trying to lock the officer out of the passenger compartment.
Wow. I'm afraid you've just damaged your credibility severely. Asking whether you are being detained is absolute standard practice, and should be the question you keep coming back to. I'm no expert, but you really don't seem to know what you're talking about.
You can have whatever opinion you want, but the officer will probably tell you, "You aren't free to leave." And it is not going to help you. You have probably been detained for a minor traffic offense or detained due to reasonable suspicion that you have committed an offense. Once the officer tells you aren't free to leave, it affects your rights not a whit unless he tries to extend the detention for a long period of time. No lawyer or judge can say exactly how much time that is, but delays of over an hour (waiting for a canine to arrive) have been upheld as legal temporary detentions.
I used to believe in consenting & taught my boys that way. A few years back my youngest was pulled over & consented to a search. The DPS officer went through everything in his car, page by page for over an hour. That changed my opinion & my advice.
I suspect something more was at work. Maybe your son was an a-hole or particularly suspicious or maybe the cop was just an a-hole.
One thing to remember: you can limit the scope of your consent ("Look officer, I didn't say you can tear anything up or make a mess of my car" or "I didn't think this would take more than a few minutes. I've got to go. I am rescinding my consent"). It may or may not help depending on what suspicion the officer has.
EDIT: here's an outline, probably made by a first year law student, with basic propositions that might be useful to those who wish to learn more.
http://currentstudents.law.miami.edu/outlines/crim_pro_out.html I found many similar references by searching "criminal procedure outline"
It's really late, so I will spell check and edit more tomorrow. Forgive me for the first draft nature of this.