There are some videos on YouTube that explain why you should never say anything to the police! Not even with a lawyer present and i think it is just as applicable to this topic. They go in great details as to why and this is acually a lawschool course.
http://www.youtube.com/watch?v=Au4_EdPwTkE
http://www.youtube.com/watch?v=B1t3vtr0kxk
Enjoy...if that is the proper phrase!