From the State Department's Annual Report on International Child Abduction:
Costa Rica demonstrated a pattern of noncompliance in 2015 because:
-The judicial authority regularly failed to implement and comply with the provisions of the Hague Abduction Convention.
The Convention is in force between the United States and Costa Rica.
To improve the resolution of abduction cases in Costa Rica, the Department recommends that the United States:
-Hold bilateral meetings with Costa Rican officials to encourage Costa Rica to comply with its obligations under the Convention.
Costa Rica's relevant statistics regarding Abduction &a Access cases can be seen below: