In a constructive dismissal claim the term breached may be an obvious and express term, such as payment of wages. In many cases it will not be as clear as this, but you may still be able to bring a constructive dismissal claim. For example, you may have had your job role changed. The most common breach relied on is an implied term of trust and confidence between employer and employee. So, for example, bullying and harassment by a line manager that has not been properly dealt with, may be a breach of this implied term and you may have a constructive dismissal claim, provided you can prove the other elements.