The problem you face is one of perspective. The founding fathers lived under the rule of a monarch, in an era filled with tyrants, so they well knew the patterns of behavior and the risks. And they appreciated that the risk of abuse of power by the government far exceeded the risks of letting a few criminals and wrongdoers fall through the cracks now and then. A government unrestrained by strong protections for individual liberty and due process is a government with no guardrail to protect it against prosecution of systematic injustices.