1) MANDAMUS TO COMPEL
performance of an act required by law (i.e., an act where no discretion is involved)
to stop a judicial officer from a GROSS EXCESS of power
- Examples of gross excess include granting a request for a double-jeopardy proceedings, or compelling depositions of witnesses neither party wishes to depose.
- Where there is no gross excess of power, proper remedy is for an appeal of the decision
that challenges the results of a "trial-type" hearing conducted by an administrative agency
4) MANDAMUS TO REVIEW
any type of administrative action not covered by 1-3