Mikesell's textbook, Chapter 3, Question 8 What is the answer?

8. A 9-1-1 emergency telephone line provides a single telephone number to be called when help is needed. An operator receives the call and directs police and/or fire- fighter assistance as needed. The address of the call is displayed on a computer screen, along with other information appropriate to guiding a response. Calls are also recorded, providing full information about the nature of the conversation. In a major metropolitan county, the cost is around $3.6 million per year, after an installation cost of $4.5 million. The system would be financed by a tax of 1.5 percent of the monthly line charge paid to the local telephone company. Prepare a narrative justification for initiation of such a system.