Overview
- Spanish Guardia Civil arrested a 50-year-old Swiss man on April 28 in Riba-roja d’Ebre, Tarragona, after a cross‑border investigation tied him to his partner's disappearance.
- Swiss cantonal police in Thurgau opened the probe after the woman's relatives filed a missing‑person report earlier in 2026 and concluded she had not moved to Spain.
- During simultaneous judicially authorized searches in Spain and Switzerland, the detained suspect led investigators to the woman's remains buried in the garden of the couple’s Swiss home.
- Swiss forensic teams have verified the remains belong to the missing woman, but the precise cause and timing of death remain subject to ongoing medico‑legal investigation.
- The operation used international rogatory commissions processed through the Tribunal de Instancia de Falset and the Fiscalía de Cooperación Internacional de Tarragona, underscoring close Spanish‑Swiss police and judicial cooperation and next steps for prosecution.