After years of toxic oil spills, indigenous Peruvians use tech to fight back

Fidel Sandi's Achuar community has been plagued with oil contamination for decades - but he is now able to collect and gather evidence for his claims

Armed with territorial knowledge, rubber boots, smartphones and drones, indigenous Amazonians in Peru are doing what state and private oil companies have long failed to do: report oil spills that have been polluting their corner of the rainforest for decades.

Fidel Sandi, 33, a leader in the indigenous Achuar community of San Cristobal, plunges a stick into the spongy soil of a palm swamp and watches as sticky crude bubbles to the surface leaving an oily sheen on the water.