[onetimemanytime]

>>Is there a limit to how many years after one dies that one’s remains or grave can be disturbed?

One gazillion years for a scumbag taking the head to his basement and destroying bones.

Graves can be moved if determined by the government, of course, but with dignity. That is totally different from some jerk deciding to desecrate graves. In a lot of countries that can send the desecrater to his own grave. If the law doesn't act, family will.