Will someone please help me with this question? What are the goals of truth-in-sentencing laws?

Where?

http://www.google.com/search?rlz=1C2GGGE_enUS379US455&hl=en&site=&q=truth-in-sentencing+laws&oq=truth-in-sentencing+laws&aq=0&aqi=g1g-m1g-vC8&aql=&gs_sm=c&gs_upl=1702l1702l0l12747l1l1l0l0l0l0l160l160l0.1l1l0