Will a Mandatory order compel the public authority to do their job?

 Yes. A mandatory order compels public authorities to fulfil their duties. Whereas quashing and prohibition orders deal with wrongful acts, a mandatory order addresses wrongful failure to act.  Failure to comply is punishable as a contempt of court. Examples of where a mandatory order might be appropriate include: compelling an authority to assess a disabled person’s needs, to approve building plans, or to improve conditions of imprisonment. A mandatory order may be made in conjunction with a quashing order, for example, where a local authority’s decision is quashed because the decision was made outside its powers, the court may simultaneously order the local authority to remake the decision within the scope of its powers.