On those cable cop shows where the cop asks for consent to search I always assumed that the cop already had probable cause to search but asked in order to avoid the bother of contacting a judge,etc.
uh.. that would be me.
got pulled over for having a license plate light out when i was moving from one residence to another and stupidly had one of my swords sitting in the back seat. oddly enough my consent and cooperation prompted the officer to testify on my behalf when i went in front of the judge.