What evidence does Perkinson provide for his claims that such policies are unjust, and particularly unfair toward African-Americans?

Among the causes of the incarceration epidemic in the United States are the growth of postRockefeller drug laws, which punish minor drug offenses with major prison time; “zero tolerance”
policing; and mandatory sentencing laws.

• What evidence does Perkinson provide for his claims that such policies are unjust, and particularly unfair toward African-Americans?
• Do you think the public interest is ultimately served by such policies, or not? Why? Explain your answer.