It was an assembly of teachers where the next mobilizations and how the planned strikes would be carried out were to be debated. According to the unions' version, it was a public and open meeting at Institut Pau Claris, in Barcelona, and two women attended who could not be identified. When questioned about their presence, they replied that they were teachers from an institute, but a professor from the same center said he did not know them. Immediately after, they left. Some of those present at the assembly, according to union sources, recognized those two women as mossas d'esquadra.

The conflict between the education sector and the Government escalates one degree further and shakes parliamentary politics. With the new wave of mobilizations underway, and amidst controversy over the pilot test to introduce plainclothes police officers in schools and institutes, the unions denounced this Thursday the infiltration of two Mossos agents into an assembly of teachers who were preparing for the next strike days. To the sector's indignation, the opposition's requests for explanations have been added, and ERC and the CUP have already called for the dismissal of the police chief, Josep Lluís Trapero. For now, the police force defends that it acts "always in accordance with current legislation" and the President of the Generalitat, Salvador Illa, has defended its "professionalism".