My article titled ‘Truth, Bias and Abuse of Power: How Indonesia’s Evidentiary Threshold Shapes Criminal Justice’ was just recently published in the International Journal of Evidence and Proof (Sage Journal). It discusses the foundation for why nations choose high or low thresholds. Apart from that, it also discusses in detail why Indonesia emphasizes the quantity of evidence (the two-evidence rule) to justify enforcement actions ranging from an arrest to a conviction. See https://journals.sagepub.com/doi/10.1177/13657127251389628
Unfortunately, I could not put a copy of the exact publication in here because it is not published under Open Access. But you can see the pre-print version here