What can you do if you catch someone shoplifting?

In brief - Retailers and their employees have a right to make a citizen's arrest

If you are sure that you have seen someone shoplifting, you have the right to make a citizen's arrest and use reasonable force to detain the shoplifter. However, bear in mind that the police advise that a citizen's arrest not be made except in extreme circumstances.

Importance of minimising risk when making a citizen's arrest

In Australia a member of the public, including a shop owner or employee, can make a "citizen's arrest" if a person has just committed an offence or is in the process of committing an offence. Following these ten steps will ensure that you minimise your risks when making a citizen's arrest.