How much cash do you take with you when you go shopping? Are you careful? Sometimes people get robbed on the street—in such cases, police assistance is essential. Dan, Sue, and Jim are police officers in London, and they're dissatisfied with a thief who's active daily, stealing from people near several shops. How can they track this thief? What does the thief look like—is it male or female? Young or old? This isn't always easy to determine. What resources do they have to assist in their search? They have radios, but thieves have phones. Dan, Sue, and Jim need something the thief doesn't have—they need Police TV!