French President Francois Hollande has paid tribute to the three police officers killed in the attacks in Paris, placing Legion of Honour medals on their coffins.
Flanked by hundreds of officers at police headquarters in central Paris, he told the crowd: "They died so that we could live free."
Mr Hollande vowed that France will be "merciless in the face of anti-Semitic, anti-Muslims acts, and unrelenting against those who defend and carry out terrorism, notably the jihadists who go to Iraq and Syria".
Chopin's funeral march was played as the coffins, draped in French flags, were carried from the building.