A professional who discovers his own error has a duty that goes beyond legal liability. Discuss with reference to a case where prompt disclosure prevented harm.

Legal liability asks what one can be punished for; professional ethics asks who may be harmed and how fast it can be stopped. WHO notes that medication errors arise when weak systems meet human factors like fatigue and staff shortages [1]. Errors are inevitable; concealing them is a choice.

Why the duty goes beyond legal liability

• Duty of care: the obligation is to the person at risk; harm prevented is worth more than compensation paid later.
• Information asymmetry: often only the professional knows of the error, so silence leaves the victim defenceless.
• Public trust: professions run on society's trust; one concealed error erodes it for all.
• Integrity and courage: disclosure risks reputation and lawsuits, so it tests whether values are truly internalised.

Case: the 1926 London strychnine error

• A London chemist found he had sold pills containing 1/4 grain of strychnine instead of 1/40, a tenfold overdose [2].
• Rather than hope it went unnoticed, he telegraphed every "Mr. Penn" in the directory, and a wireless appeal was broadcast [2].
• The buyer read of the mistake in a London newspaper and telegraphed back that no pill had been taken [2].
• Lesson: self-reporting, urgency over self-protection and use of every channel turned a possible death into a near-miss.

Beyond individual conscience

• The rescue relied partly on luck: with no record of the buyer, the buyer found the chemist, not the other way round [2].
• Hence WHO's Medication Without Harm (2017) aimed to halve severe avoidable medication harm in five years by fixing systems, not only individuals [3].
• India's QR-code traceability under Schedule H2, Drugs Rules, 1945, now extended to vaccines, antimicrobials and anti-cancer drugs, traces batches, though not the buyer at the counter [4].
• Institutions must reward honest error reporting rather than punish it, or disclosure will be suppressed.

Prompt disclosure turns a private mistake into a shared, correctable risk. The way forward combines personal integrity with institutional support: codes of conduct, non-punitive reporting and traceability that reaches the patient. Such a culture upholds the right to life under Article 21 and SDG 3, making honesty the norm, not the exception.