The president to make the supreme laws of the land
Cold case units/departments.
A cold case is any criminal investigation by a law enforcement agency that has not been solved for (generally) at least one year and, as a result, has been closed from further regular investigations.
Cold case units reexamine these closed cases and try to solve them.
England.
Spain went to Mexico.
Human nature is the general psychological characteristics, feeling and behavioural traits of humans.
You would probably get the most citizen participation through a Democracy.