The Special Intervention Unit () is a special forces unit under the control of Costa Rica's Department of Intelligence and Security. It has been described as being a company-sized commando unit. The unit is tasked with performing missions that deal with counterterrorism, hostage rescue, counter drug trafficking, and riot control. The UEI was formed in 1982 after a group of operatives went to train with Israeli Special Forces that were in Panama. As of 2014, it was estimated to have around 70 members.