The government in Panama has launched an investigation into the US invasion in 1989 that overthrew military strongman General Manuel Noriega
and see:
Govern, Kevin H., Sorting the Wolves from the Sheep (October 1, 2004). Military Police – PB 19-04-2, 2004. Available at SSRN: http://papers.ssrn.com/sol3/papers.cfm?abstract_id=2598769