What happens when a patient is forced to be in treatment?

Question 1.---What happens when a patient is forced to be in treatment? Chapter 6 in the Plante book 100 words 2 peer reviewed references the first one would be Plante, 2010 and then one more

Plante, T. G., (2010). What is Contemporary clinical psychology? Contemporary clinical psychology, third edition. ISBN 9780470587393. John Wiley & Sons Inc.