Well, there have been quite a few reports in the past weeks the police and military was finally being activated in Brazil and send out against illegal mining barges and equipment being destroyed & ~20.000 "garimperos" -- illegal prospectors (that tend to set fires and murder indigeous people, activists, reporters, local politicians against mining or goverment officials in conservation jobs) being arrested or driven out of the region.

Those guys had grown to milita forces in the past years, going so far to assaulting whole villages and police outpost. Lots of activists were assasinated in the past years.

The previous government basically turned a blind eye to all of it and some people in there had been previously investigated for illegal trade and export of protected wood.

The Amazon is really far out from most of the population centers and some regions take several days to reach, so it was quite a mobilization effort.