Well for starters HJ, one scenario, if one followed the rule of law, one would charge them with a specific crime, submit the evidence against them, excluding that which was collected by means of torture, allow them to present evidence in their defence and subject them to a public trial in a reasonable time frame. That much has been considered minimal since 1215 with the signing of the Magna Carta and even US law has the Magna Carta as it's foundation.

"38. In future no official shall place a man on trial upon his own unsupported statement, without producing credible witnesses to the truth of it.

39. No free man shall be seized or imprisoned, or stripped of his rights or possessions, or outlawed or exiled, or deprived of his standing in any other way, nor will we proceed with force against him, or send others to do so, except by the lawful judgement of his equals or by the law of the land.

40. To no one will we sell, to no one deny or delay right or justice."