Disputed maternity can be solved by using the following tests except -
Blood grouping
HLA typing
Precipitin test
DNA fingerprinting
Precipitin test is used to determine the species of the stain of blood under examination i.e. whether it belongs to human or either animal.
For setting disputed maternity/paternity, tests used are:-


Blood grouping - ABO, MN, RH system
HLA - Typing
DNA - Fingerprinting