Is blood money a religious or cultural practice, and would it apply in Indonesia?

There've been a couple of tweets about "blood money" and Indonesia, to do with impending executions by the Indonesian government of two members of the Bali Nine : From Father Bob > Allowance is made/encouraged in the Quran to substitute "blood money" > for "blood letting". Have we approached the Indonesian offended party? From Fiona Patten > Will Indonesian govt accept blood money? I'm sure we can easily raise > $1.9m which seems to be the price for a life > http://gu.com/p/45zyb/stwprice … Is "Blood Money" a religious practice, or is it a cultural practice? Also, is it applicable in parts of Indonesia outside of Aceh, or only applicable in middle eastern countries like Saudi Arabia?