Cuba has authorised state security agencies to use electronic surveillance without prior approval from a court, prompting criticism from the United States which accuses Havana of spying on opponents and tourists.
Havana said the new laws would make the police more effective "in preventing and confronting money laundering and terrorist financing."
The United States -- involved in a mass surveillance scandal in 2013 reported by ex-Central Intelligence Agency whistleblower Edward Snowden -- slammed what it called "a sweeping new law that enables surveillance in Cuba."