(Excerpt from below link)
"Every time I travel to Portugal for a new search it always begins optimistically. Could police find something this time? But on every occasion it quickly becomes apparent the searches are not tightly targeted. The police work always clearly based on quite vague intelligence - or just an investigator's hunch."
As detectives conclude a three day search, optimism fades in Praia da Luz.
www.bbc.co.uk
I think.... either they draw a line under it all or they chase their tails forever. Can't they tag CB? That's the only thing I can think of to keep this whole investigation feasible after he's released. Unless, of course, some new witness comes up with new evidence out of left field.
JMO, obviously