Allowable Reasons for excavation (digging out) a deceased

(1) to bath the deceased only if
- the body have not started to smell
- the deceased have not been bathe before this due to some reasons

(2) to make the deceased face the kiblah
- if somehow it did not before this

(3) to retrieve possessions that is buried with the deceased
- if it is the possession of the deceased himself, then only when inheritors(waris) demands for it then can it be carried out. If the deceased somehow swallow his possession, then the grave cannot be dug. However, if the swallowed possession is not his, then it can be dug out if the owner of that possession demands so.
- possessions of other people e.g those who assisted in the burying that drop inside the grave can be retrieved by digging the grave as well.

(4) a woman whose foetus was buried together with her AND the foetus has a chance of living
Note:
- only if there is possibility that the foetus is still living
- in the case where a pregnant woman dies, and it is not possible to take out the baby, the woman and the baby cannot be buried until the baby is dead as well.

other allowable reasons
(a) deceased buried in illegal ground can be shifter
(b) if the deceased is kafan ( wrapped) with kafan that is stolen
(c) if a kafir is buried in makkah/madinah MUST be excavated
(d) if the area is flooded, can shift the deceased
(e) if there is nothing that remain from the deceased, not even its bones, the grave can be reused. although the sulbi will remain, it is microscopic and cannot be seen by the naked eye.
(f) investigation purposes