Only founded reports are counted in the UCR Program. First, a crime must come to the attention of the police by being reported or by the police seeing the crime occur. Then, the report must be considered founded. Reports not believed or considered impossible to prove by an officer are considered unfounded and will not be officially counted. The current implementation of the UCR Program collects only aggregate data from police departments around the country.
Some preliminary data is available.
However, Arizona is not one of the pilot states and there is no scheduled inclusion date at this time. Data Table 2. It is estimated that 102,096 forcible rapes, 39.2 per 100,000 population, were known to the police in the United States in 1994. Table 6 above shows the offenses known to the police in cities over 100,000 people in Arizona. The major advantage that using the UCR Program as a source of sexual assault surveillance data is its relatively low cost to users.