He takes pictures of pages which he later scours for clues about that family
The Police has been scouring the building for days for any possible clues
she was scouring for information on pneumonia symptoms
to scour: restregar. Limpiar algo frotando fuerte con algo aspero. || rastrear, registrar, escudriñar. Buscar intensamente en una página web, texto, libro, lugar para encontrar algo que estás buscando.