Alberto Laplaine Guimarães, Secretary-General of the Lisbon City Council, has been suspended from his duties following his arrest in Operation Lúmen, which investigates alleged economic crimes involving Christmas lighting contracts. A criminal investigation judge has imposed several coercive measures on him and three other defendants, including prohibitions on entering municipal premises and contacting employees or co-defendants. The investigation, led by the Porto Criminal Investigation Court, focuses on allegations of corruption, abuse of power, and bid-rigging in public procurement processes across ten municipalities, with contracts totaling approximately eight million euros.