Hrmm im actually abit surpised that the wiretapping statistics are so low, always thought it was alot higher then that, I have known acouple people that had there phone taps..and several others that were pretty sure they did, myself aswell...seemed like they always had an idea of my whereabouts, pulling over someone else with me in the backseat for no reason then acted suprised they see me (cops that have arrested me before)..think "do you realise, your..oh look its **** **** what you holding on you this time?" hah
You really have nothing to worry about, with the police having his phone they won't tap yours, your just clientel to a smalltime dealer..who cares really? As for the pre-paid phones, yea i use to always get them and get some random girl to buy them with names like billy bob, and ey yo.
As a side question, do those statistics count bugs (ones found in your home or a car for example), couldn't see anything that would imply if there added in or not.