The background — a bookshelf and a window — showed consistent JPEG compression blocks at quality level 92. But the man’s face? It was compressed at level 78, with telltale ghosting around the jawline. the report read. “Face transplanted from another source.”
Detective Lena Moss had spent fifteen years working digital forensics, but the case on her screen felt different. A leaked photograph had surfaced online — a grainy image of a government official in a room he had sworn he never entered. If real, it would topple an administration. If fake, it would ruin an innocent man’s life. excire forensics
Lena wasn’t done. She ran Excire’s Error Level Analysis (ELA). The face glowed bright white against the dim room — a classic sign of digital tampering. Then she used the Clone Detection module. It highlighted a perfect circular patch on the wall behind the man’s shoulder: a logo had been crudely erased and blended. The background — a bookshelf and a window
But the most damning evidence came from the Noise Consistency Map . The camera sensor noise in the background was uniform and natural. The face, however, had no noise pattern at all — meaning it had likely been generated by an older AI model or copied from a highly compressed social media selfie. the report read
The Last Verified Frame