Why the standard is high
Criminal punishment can take away freedom, reputation, time, and sometimes life. That is why evidence quality, defense rights, impartial decision-making, and the burden of proof matter so much.
How injustice can happen
Wrongful convictions can involve mistaken identification, unreliable forensic methods, false confessions, suppressed evidence, official misconduct, inadequate defense, or bias. No single factor explains every case.
Race and fairness
The Equal Justice Initiative has documented how racial discrimination in jury selection can damage confidence in verdicts and contribute to unfair criminal-justice outcomes.
What justice should require
Investigations should follow evidence rather than assumptions. Courts should correct proven errors, evidence should be preserved, misconduct should have consequences, and innocence claims should receive serious review.
Research source
This article is written in my own words and uses this source for the legal or factual background referenced above.