A firmer basis for argument is afforded by the trend of the homicide rate in a country before and after the abolition of capital punishment, and, in a few cases, its reintroduction.

• 一个国家在废除死刑前后的杀人犯的比率的发展趋势，以及在少数情况下重新引入死刑后杀人犯的比率的发展趋势为上述论点提供了较为坚实的基础。