This market will resolve to "Yes" if former president of Spain José Luís Rodríguez Zapatero is arrested or detained by law enforcement by March 31, 2026, 11:59 PM ET. Otherwise, this market will resolve to "No".

Temporary holding at a detention facility while awaiting a judge’s decision on whether to grant a detention warrant qualifies, so long as they are held by law enforcement in an official capacity during that time.

A qualifying arrest/detention includes:
* Being taken into physical custody by law enforcement authorities (including federal, state, local, military, or international law enforcement)
* Voluntarily surrendering to law enforcement authorities in response to an arrest warrant
* Being formally booked or processed following detention
* Being handcuffed by a state authority and taken to a police station
* Surrendering at a police station or courthouse with their attorney
* Being placed under house arrest or electronic monitoring

The following scenarios will NOT qualify as an arrest/detention
* An arrest warrant being issued but not executed
* Being questioned or interviewed without arrest
* Being named in an indictment without arrest

The primary resolution source for this market will be official information from the arresting government and law enforcement; however, a consensus of credible reporting may also be used.