- Archaeological site looting pit detection and progression monitoring — Illicit excavation leaves crater fields and spoil heaps visible in very-high-resolution optical imagery. Mapping pit density, disturbed area and progression over time gives heritage authorities and enforcement agencies the evidence base to act.
- Illegal charcoal production kiln detection — Active earth kilns emit detectable thermal signatures in Landsat 8/9 TIRS and VIIRS bands; spent kilns leave spectrally distinct dark-soil scars visible in Sentinel-2 and Planet imagery. Together, these two signals support both real-time enforcement and cumulative deforestation accounting.
- Clandestine grave and mass burial site detection — Freshly disturbed soil and decomposition-driven vegetation die-off leave spectral and topographic signatures detectable from orbit. Satellite remote sensing, documented in forensic literature, can cue ground investigators to clandestine burials linked to organised crime or atrocity events.
- Clandestine drug-laboratory thermal anomaly detection — Large-scale clandestine drug laboratories emit persistent heat signatures detectable by spaceborne thermal sensors. This page explains which sensors apply, where the method works, and where it fails.
- Illicit crop cultivation monitoring: coca and cannabis — Coca and cannabis carry spectral and phenological signatures that distinguish them from surrounding vegetation. UNODC's ICMS programmes in Colombia, Peru, Bolivia and Afghanistan have demonstrated that Sentinel-2 time-series, combined with VHR optical confirmation, can map cultivation at national scale with sub-hectare sensitivity.
- Conflict mineral extraction site monitoring for supply-chain due diligence — Sentinel-2 and PlanetScope change detection can document pit expansion, road construction and processing-site activity at named conflict-mineral sites, giving supply-chain auditors satellite evidence to set alongside IPIS ground data.
- Cross-border smuggling infrastructure and track mapping — Compacted soil, disturbed vegetation and metal infrastructure create spectral and radar signatures that persist long after a vehicle has passed. Sentinel-2 time-series and VHR optical imagery map informal tracks and border-crossing infrastructure used by overland smuggling networks.
- Dark-vessel detection on known smuggling routes — SAR radar detects vessel hulls regardless of AIS status. Cross-referencing SAR positions with transponder gaps on documented smuggling routes in the Mediterranean, Gulf of Guinea and Strait of Malacca identifies vessels of operational interest.
- Ghost vessel identity switching and flag-of-convenience detection — Vessels evading sanctions or smuggling cargo frequently broadcast cloned or false AIS identities. Fusing SAR-derived hull geometry with AIS-reported identity exposes the contradiction.
- Illegal amber extraction pit and landscape scarring detection — Illicit amber mining in Ukraine's Rivne and Zhytomyr oblasts leaves dense pit fields and pump-discharge channels that are legible in multispectral satellite imagery. Object-based analysis of Sentinel-2 and PlanetScope data can map active zones, track seasonal spread and quantify disturbed area for enforcement agencies.
- Camouflaged illegal arms depot and weapons-cache site detection — Concealed weapons caches hide under netting and canopy, but artificial camouflage materials betray themselves in near-infrared reflectance and SAR coherence time series. This page explains the sensor physics, honest detection limits, and how the methods combine.
- Informal border-crossing footpath and vehicle track mapping — Repeated foot and vehicle movement across ungoverned border segments leaves compaction and vegetation loss detectable in VHR optical imagery and SAR coherence products. Distinguishing smuggling routes from livestock paths requires endpoint analysis, not just track geometry.
- Illicit indoor cannabis greenhouse detection by thermal and spectral signature — Large-scale indoor cannabis grows betray themselves through heat: ECOSTRESS and Landsat TIRS flag anomalous roof temperatures, while Sentinel-2 identifies blacked-out glazing. Resolution limits are real, but the combination narrows enforcement priority lists considerably.
- Illegal cattle ranch expansion into protected forest — Multispectral time series at 3–10 m resolution can detect pasture clearance inside protected forest zones within weeks, mapping bare soil, grass and corral infrastructure against cadastral boundaries to identify unlicensed conversion.
- Illegal large-scale driftnet gear detection at sea — Driftnets longer than 2.5 km are banned by UN resolution, yet AIS tracks only the boat, not the gear. Synthetic aperture radar can image the net itself, and dark-vessel correlation closes the attribution gap.
- Informal e-waste dismantling and open-burning site detection — Open burning of e-waste cables and acid-stripping of circuit boards leave spectral and thermal signatures detectable from orbit. Multispectral and thermal sensors can locate active sites and map the contamination footprint they leave behind.
- Unlicensed fireworks and pyrotechnic manufacturing site detection — Clandestine pyrotechnic factories hide in farm sheds and residential plots, but thermal infrared and sub-metre optical imagery expose the physical and thermal signatures that licensing authorities never see on paper.
- Illegal, unreported and unregulated fishing vessel detection — SAR imagery detects vessel hulls regardless of AIS status, exposing fishing activity inside EEZs and marine protected areas that transponder data alone would miss. Matching SAR detections against AIS and VMS gaps identifies the dark vessels most likely to be operating without authorisation.
- Informal fuel depot and artisanal crude-oil refinery detection — Artisanal crude refining leaves overlapping signatures across thermal, radar and optical data. Satellite analytics can locate active sites within days and map historical contamination across entire creek systems.
- Ivory and bushmeat stockpile facility detection near park boundaries — High-resolution optical imagery can identify informal storage and processing compounds near park boundaries by detecting construction patterns, vehicle activity and cold-storage infrastructure inconsistent with declared land use.
- Illegal landfill and open waste-dumping site detection — Unpermitted dump sites leave measurable signatures in thermal, shortwave-infrared and visible imagery. Satellite monitoring can detect active decomposition, leachate staining and site expansion before ground inspectors arrive.
- Illegal logging road detection in tropical forest — Unpermitted access roads are the first and most persistent signature of illegal logging. SAR change detection cuts through the cloud cover that shields most tropical cutting fronts, while high-resolution optical imagery confirms surface type and direction of advance.
- Unlicensed sawmill and timber-processing site activity monitoring — Unlicensed sawmills leave distinctive footprints in satellite imagery: log-yard stockpiles, sawdust waste, and vehicle tracks. Cross-referencing detected sites against national concession registers separates the detection problem from the legality question.
- Illegal artisanal and small-scale mining pit expansion — Unpermitted artisanal and small-scale mining leaves spectral, structural and hydrological signatures detectable from orbit. Open-source and commercial sensors can map pit expansion, turbidity plumes and mercury stress in fringing vegetation at operationally useful cadence.
- Illegal pesticide and agrochemical dumping on agricultural land — Banned or expired agrochemicals dumped on fields leave spectral signatures that differ measurably from drought, frost or disease. Sentinel-2 red-edge and SWIR bands, combined with water-quality proxies, can surface those signatures before ground inspectors arrive.
- Illegal sand and aggregate dredging on river systems — Illicit sand extraction reshapes river channels and spikes water turbidity in ways Sentinel-2 and Sentinel-1 can track at five-day revisit. Cloud cover during monsoon season is a real constraint; SAR partially compensates.
- Unlicensed gambling arcade and illicit cash-business cluster detection — Persistent night-time illumination inconsistent with declared land use, combined with high vehicle-turnover signatures in very-high-resolution daytime imagery, can flag candidate unlicensed gambling or cash-front clusters for ground investigation.
- Unlicensed tobacco plantation detection for excise enforcement — Unlicensed tobacco cultivation supplies untaxed cigarette manufacturing across the EU, Ukraine and South America. Multispectral imagery can fingerprint tobacco's canopy and phenology, flagging unregistered plots for excise investigators.
- Unauthorised irrigation water abstraction detection — Unlicensed irrigation leaves a spectral fingerprint: anomalously high NDVI and elevated evapotranspiration in areas with no registered water rights. Fusing Sentinel-2, Landsat and FAO WaPOR data turns that fingerprint into enforcement evidence.
- Unauthorised oil and gas well drilling detection — Illegal well drilling leaves a predictable sequence of surface scars: cleared pads, access tracks, flare light and tank batteries. Sentinel-1 SAR and PlanetScope optical time series can flag new pad events within days, though distinguishing unlicensed from licensed activity still requires concession-boundary cross-referencing.
- Narco-trafficking clandestine airstrip mapping — Unpermitted landing strips used for drug transshipment leave a geometric and spectral signature that satellite imagery can resolve. Sentinel-2, WorldView-3 and Sentinel-1 SAR together cover the cloud-prone Andean and Central American corridors where most clandestine strips operate.
- Illegal oil bunkering and pipeline-tap site detection — Illegal oil bunkering in the Niger Delta costs producers billions and poisons ecosystems. Sentinel-1 SAR, Sentinel-2 and VHR optical imagery each expose different signatures of the same crime.
- Opium poppy cultivation mapping by phenological signature — Opium poppy produces a spectral trajectory through flowering and capsule stages that no cereal crop replicates. Time-series analysis of red-edge and EVI signals on Sentinel-2 and PlanetScope can map cultivation at field scale, though cloud cover and plot fragmentation set real limits on what satellites can count.
- Anomalous container dwell-time detection at ports for smuggling risk — Very-high-resolution optical time series can track individual container positions across port yards, flagging dwell-time outliers and atypical inter-yard transfers as behavioural risk signals for customs prioritisation.
- Precursor chemical storage and transshipment site detection — Bulk precursor chemicals move through warehouses and tank farms that are visually indistinguishable from legal agrochemical storage. Change detection on very-high-resolution imagery, combined with AIS vessel calls and road-traffic density, builds the corroborating layers that imagery alone cannot.
- Illicit market and informal economy monitoring in refugee settlements — Very-high-resolution optical satellites can track market expansion, structure density and vehicle patterns in large refugee settlements. The method flags spatial anomalies for ground investigation; it cannot distinguish licit from illicit trade.
- Illicit river-route vessel activity detection — Small vessels on drug-transshipment rivers run without AIS and often at night. SAR imaging and VIIRS night-light analysis reveal their presence anyway, using radar cross-section and thermal-light anomalies on open water reaches.
- Activity monitoring at sanctioned industrial facilities — Open-source satellite imagery can reveal whether a sanctioned refinery, port, or weapons-related plant is still operating, using vehicle counts, stockpile geometry, thermal signatures, and vessel calls as proxies for activity that trade data no longer shows.
- Sanctions-evading ship-to-ship oil transfer detection — Ship-to-ship oil transfers in international waters are a documented mechanism for laundering sanctioned crude from Iran, Venezuela and North Korea. Fusing wide-area SAR search with tasked high-resolution SAR confirmation exposes the transfers that AIS silence is designed to hide.
- Semi-submersible and narco-submarine route detection — Low-profile vessels used for cocaine transshipment leave near-zero radar cross-section and carry no AIS, but Kelvin wake signatures in high-resolution SAR imagery betray their passage. Detection is probabilistic; this page covers the physics, the published methods, and the honest limits.
- Unlicensed construction and land-use violation detection — Satellite change-detection compares current very-high-resolution imagery against cadastral baselines to flag structures built without permission. New concrete and metal roofing have distinct spectral and textural signatures that algorithms can isolate at scale, long before an inspector arrives on site.
- Wildlife-trafficking transit hub and holding-site monitoring — VHR optical satellites can detect vehicle patterns, temporary enclosures and compound changes at suspected wildlife-trafficking transit sites. Imagery is a cueing tool, not a conviction: ground investigation must follow.