From wireless appeals in the 1920s to cell-broadcast alerts today, communication technology has transformed public-safety response. Discuss, with reference to India's emergency alert architecture.

In 1926, a London chemist sold strychnine pills that were ten times too strong: each held 1/4 grain instead of 1/40. To find the buyer, the chemist sent a wireless appeal and telegrams to every "Mr. Penn" in the directory [1]. Today India can alert millions of phones within seconds. Alerts have become far faster and reach far more people, but they still cannot reach one particular person.

Transformation: From Chance to System

• 1920s: slow channels that sent the same message to everyone. The buyer learned of the error from a newspaper, so luck saved him, not the system [1].
• Standardisation: NDMA's SACHET alert system, built by C-DOT, uses the ITU-recommended Common Alerting Protocol (CAP) [2].
• Scale: over 134 billion SMS alerts in more than 19 languages, across all 36 States/UTs [2].
• Speed: Cell Broadcast reaches every phone in a defined area at the same moment. This suits tsunamis, earthquakes and gas leaks [2].
• Self-reliance: an indigenous Cell Broadcast System, launched by the Ministry of Communications with NDMA and MHA [3].

Alert flow: Disaster authority → SACHET (CAP) → telecom networks → SMS / Cell Broadcast → every phone in the target area

Gaps That Remain

• Place, not person: alerts aimed at a map area work for a cyclone, but they cannot find one person whose location is unknown. Today's system would still struggle to find Mr. Penn [1][2].
• Packet, not patient: under Schedule H2 of the Drugs Rules, 1945, QR codes carry nine data items, such as batch, manufacturer and expiry date. None of them identifies the buyer [4], so a dispensing error at the counter leaves no trail to the patient.
• Narrow scope: alerts cover disasters and weather but not drug recalls. Yet medication errors cost about US$42 billion a year worldwide [5].

Way Forward

• Use SACHET's multilingual reach for urgent drug-recall notices [2].
• Link H2 QR codes to a dispensing record for high-risk medicines, a list that has been extended to vaccines and anti-cancer drugs [4].
• Align with WHO's Medication Without Harm challenge, which aimed to halve severe avoidable medication harm [5].

From telegrams to Cell Broadcast, technology has moved public-safety response from chance to system. Adding person-level tracing to area-based alerts would make early warning both fast and precise. That would give fuller effect to the right to life under Article 21 and to SDG 3 (good health and well-being).