First of all, you guys are all wrong, babylon does not refer the police. Babylon is a word that jamaicans use to compare their experience of being brought to the americas to the jews being brought to babylon during the babylonian captivity. Babylon refers to the place of captivity as well as the power structure that keeps them there. It can also apply to imperial powers and commercial powers such as corporations and governments.
Peter Tosh didn't want to go on tour in the US because he did not want to go into the heart of babylon.