>> 20% of people committing 80% crime within a city. >> convince these crooks won't stop committing crimes, police secretly tail them, catching habitual offends are in the act. tonight, we're riding with the sergeant as he and his team follow a suspect named raja jones, six-time convicted felon. that's the perfect example habitual criminal. >> jones. >> jones. >> what has raja been up to? take a look at a year ago october. >> watching a professional shoplifter go to work. fry's electronic store. surveillance cameras pick him up and follow him as he heads down the aisle looking like a regular shopper. stopping and browsing. soon, he makes his move. watch as he takes $139 amplifier out of the box, shoves it down his pants, and then covers it up with his shirt. feeling the squeeze, he takes off his belt, and ditches it.