Official explanation by the Guardia Civil: "There is an ongoing investigation being carried out by the National High Court where the movement Tsunami Democratic has been confirmed as a criminal organization driving people to commit terrorist attacks. Tsunami Democratic's main goal is coordinating these riots and terrorist actions by using any possible mean."
What even is presumption of innocence or neutrality https://github.com/github/gov-takedowns/blob/master/Spain/2019/2019-10-23-GuardiaCivil.md