Belfast Police Department's new K-9, Dex, faces off with City Councilor Eric Sanders during a visit with city officials March 21. Belfast Police tried three other drug-sniffing dogs that each turned out to have character flaws — compulsively covering other dogs' scents, chasing cars, flinching and cowering — that interfered with the focus required of a police dog, Chief Mike McFadden said. By contrast, McFadden and Officer Travis Spencer, Dex's handler, believe the 16-month-old German Shepherd has what it takes.