The virtual demonstration retaliates against a forthcoming law that would restrict public assembly.

In response to a new law that would penalize people for protesting in front of government buildings, Spanish protesters have already found a loophole: the use of holograms in place of people.

A collective called No Somos Delito (“We Are Not a Crime”), which is made up of activists from more than 100 organizations, gave a virtual demonstration in Madrid with holograms over the weekend of what will happen should Spain’s new Citizen Safety Law go into effect on July 1st.

Under the new law, protesters will risk fines of up to 30,000 euros ($31,800) for assembling in front of Congress or other government buildings, including universities or hospitals, without permission, according to CNN. The Independent also reported that organizers of protests could be fined up to 600,000 euros ($634,100).

“Our protest with holograms is ironic,” said spokesman Carlos Escano to the Spanish newspaper El Mundo, as quoted by CNN. “With the restrictions we’re suffering on our freedoms of association and peaceful assembly, the last option that will be left to us in the end will be to protest through our holograms.”

In the weeks preceding the hologram protest, those in opposition to what’s being called the “gag law” were invited to upload a webcam of themselves to the campaign’s website, Holograms for Freedom. The videos were then transformed into holographic images, which produced 2,000 ghost-like protesters for the hour-long demonstration. Prior to the hologram protest, in-person protests have been occurring in 30 different Spanish cities since December when the governing Popular Party passed the law, according to The Independent.

View the hologram protest in the Ukraine Today video below:

Screenshot courtesy of Ukraine Today’s YouTube channel