What is the percentage of solved crimes and unsolved?

Question

I'm doing a project on how realistic CSI is, and I need this information to show the difference between the 90% solved, 10% unsolved on CSI.
It doesnt matter what town, or state, or province, as long as it has an average population.

Answer 1

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Within the UCR Program, law enforcement agencies can clear, or "close," offenses in one of two ways: by arrest or by exceptional means. Agencies may administratively close a case, but this does not necessarily mean that the agency can clear the offense for UCR purposes. To clear an offense within the Program's guidelines, the reporting agency must adhere to certain criteria, which are outlined in the following text. (Note: The UCR Program does not distinguish between offenses cleared by arrest and those cleared by exceptional means in its data presentations. The distinction is made solely for the purpose of a definition and not for data collection and publication.)

Cleared by Arrest
In the UCR Program, a law enforcement agency reports that an offense is cleared by arrest, or solved for crime reporting purposes, when all of the following conditions have been met for at least one person:

Arrested.
Charged with the commission of the offense.
Turned over to the court for prosecution (whether following arrest, court summons, or law enforcement notice).
In its calculations, the UCR Program counts the number of offenses that are cleared, not the number of arrestees. The arrest of one person may clear several crimes, and the arrest of many persons may clear only one offense. In addition, some clearances that an agency records in a particular calendar year, such as 2006, may pertain to offenses that occurred in previous years.

Cleared by Exceptional Means
In certain situations, elements beyond law enforcement's control prevent the agency from arresting and formally charging the offender. When this occurs, the agency can clear the offense exceptionally. Law enforcement agencies must meet all of the following conditions in order to clear an offense by exceptional means. The agency must have:

Identified the offender.
Gathered enough evidence to support an arrest, make a charge, and turn over the offender to the court for prosecution.
Identified the offender's exact location so that the suspect could be taken into custody immediately.
Encountered a circumstance outside the control of law enforcement that prohibits the agency from arresting, charging, and prosecuting the offender.
Examples of exceptional clearances include, but are not limited to, the death of the offender (e.g., suicide or justifiably killed by law enforcement or citizen); the victim's refusal to cooperate with the prosecution after the offender has been identified; or the denial of extradition because the offender committed a crime in another jurisdiction and is being prosecuted for that offense. In the UCR Program, the recovery of property does not clear an offense.

Clearances Involving Only Persons Under 18 Years of Age
When an offender under the age of 18 is cited to appear in juvenile court or before other juvenile authorities, the UCR Program considers the incident for which the juvenile is being held responsible to be cleared by arrest, even though a physical arrest may not have occurred. When clearances involve both juvenile and adult offenders, those incidents are classified as clearances for crimes committed by adults. Because the clearance percentages for crimes committed by juveniles include only those clearances in which no adults were involved, the figures in this publication should not be used to present a definitive picture of juvenile involvement in crime.

Overview
Nationwide in 2006, 44.3 percent of violent crimes and 15.8 percent of property crimes were cleared by arrest or exceptional means.
Of the violent crimes (murder and nonnegligent manslaughter, forcible rape, robbery, and aggravated assault), murder had the highest percentage of offenses cleared at 60.7 percent.
Of the property crimes (burglary, larceny-theft, and motor vehicle theft), larceny-theft had the highest percentage of offenses cleared at 17.4 percent.
Eighteen percent of arson offenses were cleared by arrest or exceptional means.
Nationwide in 2006, 40.2 percent of arson offenses cleared by arrest or exceptional means involved only juveniles (individuals under age 18), the highest percentage of all offense clearances involving only juveniles.

Source(s):

http://www.fbi.gov/ucr/cius2006/offenses…

Answer 2

90 percent are unsolved cases with only 10 percent as solved.

Answer 3

The current NATIONAL clearance rate for crimes (clearance rate means that there was an arrest) is 60%, and has actually gone down from 90% back in the 60s.

Source(s):

The FBI Unified Crime Report

Answer 4

Since figures don't lie but liars figure you will never know the truth.
Here the Dallas Police disagree with the FBI numbers, because they are cooking the books to reduce the crime rate.

Even with their fake figures the solved percentage is less than 10%, they don't even investigate misdemeaners and theft of or from a vehicle.