The special unit of 24 officers ensures that both workers and party-goers comply with the mandatory order to wear face masks and that clubs keep tables far enough apart to maintain social distancing between groups.
Nightclubs have been repeatedly cited by regional health authorities as sites of contagion. Northeast Catalonia has ordered them shut down.
Spain is struggling to keep an uptick in infections in check after it had managed to control an initial nationwide outbreak that forced the government to impose a strict three-month lockdown.
The health ministry on Friday reported the country's highest daily increase in new infections since the lockdown ended in June, with 1,895 cases recorded — some 200 more than the previous day.
Spain has confirmed 28,503 virus deaths in the pandemic but experts say all numbers in all countries are undercounts due to limited testing, missed cases and other issues.
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