SIES-M Integrated Emergency & Security Camera Network
This overview was generated with AI from the public sources listed below and checked against them before publication. It has not had a complete human fact-check — treat it as a starting point and follow the sources.
1 sourced claim on this page, none individually verified yet — turn on “Sources in the text” to see each one.
How this atlas is made · What “last verified” means · What “source-checked” means · The full record behind this page
A rare camera-specific study found violent crime down 26% within 120 meters of a camera, and no displacement nearby. It still does not explain the city's multi-decade homicide decline.
what does this mean?
The strongest source behind this entry is an independent peer-reviewed or academic study. It grades who did the looking — not how well the project went. All four grades →Part of 1001 Smart Cities — 1,167 documented projects · 🏙️ 9 more in Medellín · 🛡️ Safety & security guide · 🏛️ Governance projects
Medellín's Secretaría de Seguridad y Convivencia and the National Police jointly run SIES-M, an integrated camera and emergency-response network inaugurated in October 2011 with roughly 350 cameras. It has grown to more than 3,230 cameras — including license-plate readers and facial-recognition units — feeding one command center alongside the 123 emergency line, body cameras and a police helicopter.
📊 Impact
A peer-reviewed study (Gómez, Mejía & Tobón, Journal of Policy Analysis and Management, 2021) tracking camera installations across Medellín in 2013-2018 found a 26% drop in violent crime and a 17% drop in property crime within 120 meters of a camera, with no measurable displacement to nearby blocks.
🎓 Lesson
A camera-specific, quasi-experimental study can isolate this system's own deterrent effect — a rarity — but that doesn't make it the explanation for Medellín's much larger, multi-decade homicide decline, which has many other, non-technological drivers.
Sources
📅 How old is the evidence?
Two clocks, kept apart: when this entry’s sources were published, and what has happened to its record in the atlas. Documented span: since 2011. 3 of 3 sources carry a publication date, from 24 October 2011 to 17 September 2021.
When the sources were published
- El Colombiano · pressEl Colombiano — SIES-M inaugurada el 24 de octubre de 2011
- Wiley · researchGómez, Mejía & Tobón (2021), J. of Policy Analysis and Management
- Alcaldía de Medellín · city governmentSIES-M — Alcaldía de Medellín
Show your work What this page rests on and what it can’t tell you · all 1 claims with their sources · the forensic record
Evidence Passport · public beta 1 addressable claim, 3 source dossiers, one permanent baseline. The passport is unreviewed — an AI-assisted structural migration, not a human or expert endorsement. Every revision keeps a permanent copy under revision history.
Inspect the claims, one by one — verbatim text, sources and caveats for all 1
The text below is copied verbatim from the published record. Each claim names the source dossiers that carry it; caveats stay attached to the claim they qualify.
clm-3bf6bb74696c2b2c
quantitative
a 26% drop in violent crime and a 17% drop in property crime within 120 meters of a camera, with no measurable displacement to nearby blocks
Sources carrying this claim
Forensic record — source dossiers, gaps, hashes and the exact revision this page renders
This layer records what is known about each source, what is still missing, and the exact snapshot this page is rendering. A missing date, archive or hash stays visible as missing.
Awaiting operator and domain-expert review; publication of this revision implies neither.
sha256:9f6548f124d9fc53be45552f73da5ad4bcc09e2aa520177edc6ade98157b6060
- 1
- of 1 claims mapped
- 3
- source dossiers
- 3
- publication dates recorded
- 0
- archives linked
- 0
- exact locators
- 0
- content captures hashed
Governance facts carried by the record
- Operator
- Secretaría de Seguridad y Convivencia de Medellín / Policía Nacional
- Actor types
- city-government, national-government
- Funding model
- public
- Funding description
- Not recorded
- Cost
- Not recorded
- Ownership
- Not recorded
- Decision rights
- Not recorded
- Exit conditions
- Not recorded
3 source dossiers
SIES-M — Alcaldía de Medellín
- Stable source ID
src-736c68b69ec6e052- Publisher
- Name not classified · medellin.gov.co
- Type / language
- web-page · language not classified
- Published
- 2021-09-17
- Updated
- Not recorded
- Source last checked
- No source-level check date
- Record last verified
- 2026-07-30
- Dossier created
- 2026-08-20
- Retrieved copy
- No local capture recorded
- Archive
- No archived copy linked
- Content hash
- No captured content hash
- Locator
- Descriptive only — not page/paragraph exact
Open the recorded source note
Official operator page: current camera breakdown (3,230+), agencies, technology components.
- Claims linked
- Background source; no baseline claim points here
El Colombiano — SIES-M inaugurada el 24 de octubre de 2011
- Stable source ID
src-eee17bd3b7cb1986- Publisher
- Name not classified · elcolombiano.com
- Type / language
- web-page · language not classified
- Published
- 2011-10-24
- Updated
- Not recorded
- Source last checked
- No source-level check date
- Record last verified
- 2026-07-30
- Dossier created
- 2026-08-20
- Retrieved copy
- No local capture recorded
- Archive
- No archived copy linked
- Content hash
- No captured content hash
- Locator
- Descriptive only — not page/paragraph exact
Open the recorded source note
Launch date, initial ~350-camera count, COP 26 billion cost.
- Claims linked
- Background source; no baseline claim points here
Gómez, Mejía & Tobón (2021), J. of Policy Analysis and Management
- Stable source ID
src-e7685647ef91ea64- Publisher
- Name not classified · onlinelibrary.wiley.com
- Type / language
- web-page · language not classified
- Published
- 2021-01-05
- Updated
- Not recorded
- Source last checked
- No source-level check date
- Record last verified
- 2026-07-30
- Dossier created
- 2026-08-20
- Retrieved copy
- No local capture recorded
- Archive
- No archived copy linked
- Content hash
- No captured content hash
- Locator
- Descriptive only — not page/paragraph exact
Open the recorded source note
Peer-reviewed quasi-experimental evaluation of Medellín's 2013-2018 camera rollout.
- Claims linked
Known limits of this passport
- Publisher names and source languages have not yet been classified; domains are recorded without guessing.
- Existing source notes are descriptive locators, not page- or paragraph-exact citations.
- A missing archive, publication date or content hash is shown as null rather than inferred.
- The project-level evidence grade ranks the strongest source in the entry; it is not a truth score for every claim.
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📎 Cite this project
1001 Smart Cities (2026). “SIES-M Integrated Emergency & Security Camera Network” — Medellín, Colombia. The Smart City Atlas. https://1001smartcities.org/projects/medellin-sies-m/ (last verified 2026-07-30). Data: CC BY 4.0.
The underlying data is free to reuse with attribution — see the open data page.