I saw someone already provided an answer but it's incomplete and doesn't answer the question entirely. Here's it in full:
Answer:
Some of the methods that interrogators used to get prisoners to admit to crimes they never committed included having prisoners expose their clothes-less bodies to be bitten by ants and bugs and being kept from sleeping for weeks on end. These techniques, in my opinion, were so successful because people were also suffering from tremendous agony and lacking a clear head. They desired for it to end. For which they would often make any arrangements, including confessing to any crimes they were falsely accused of.