本文描述了对人们检测篡改成功与失败的测量和统计处理，并提出了提高拘留成功率的方法。给出了失效模式的例子。讨论了美国篡改证据的监管现状。

This paper describes measurement and statistical treatment of the successes and failures of people to detect tampering, and suggests ways to increase the success rate for detentions. Examples of failure modes are given. The current regulatory status of tamper evidence in the U.S. is discussed.