"Sometimes there can be more than one reason why an employee leaves a job, for instance he or she may feel some dissatisfaction with the present job and have received an offer of something that promises to be better. Where there are mixed motives a Tribunal must determine the effective cause of the resignation. In the case of Jones v Sirl & Sons (Furnishers) Ltd[1997] IRLR 493 the employee had been subjected to a number of fundamental breaches of contract in the space of a few months. Three weeks after the last of those breaches she resigned having been offered another job. The Tribunal took the view that since the employee's departure had been prompted by the offer of alternative employment the employer's breach had not caused her resignation. The EAT overruled this, holding that the correct approach in such a case was to ask what was the effective cause of the resignation."
"It has been held by the EAT in Jones v Sirl & Son (Furnishers) Ltd that in constructive dismissal cases the repudiatory breach by the employer need not be the sole cause of the employee's resignation. The EAT there pointed out that there may well be concurrent causes operating on the mind of an employee whose employer has committed fundamental breaches of contract and that the employee may leave because of both those breaches and another factor such as the availability of another job. It suggested that the test to be applied was whether the breach or breaches were the 'effective cause' of the resignation. I see the attractions of that approach but there are dangers in getting drawn too far into questions about the employee's motives. It must be remembered that we are dealing here with a contractual relationship and constructive dismissal is a form of termination of contract by a repudiation by one party which is accepted by the other; see the Western Excavating case. The proper approach therefore, once a repudiation of the contract by the employer has been established, is to ask whether the employee has accepted that repudiation by treating the contract of employment as at an end. It must be in response to the repudiation but the fact that the employee also objected to other actions or inactions of the employer not amounting to a breach of contract would not vitiate the acceptance of the repudiation …"
"…the employer's repudiatory breach was the effective cause of the resignation. It is important, in our judgment, to appreciate that in such a situation of potentially constructive dismissal, particularly in today's labour market, there may well be concurrent causes operating on the mind of an employee whose employer has committed fundamental breaches of his contract of employment entitling him to put an end to it. Thus an employee may leave both because of the fundamental and repudiatory breaches, and also because of the fact that he has found another job. In such a situation, which will not be uncommon, the industrial tribunal must found out what the effective cause of the resignation was, depending on the individual circumstances of any given case."
"Whilst the breach must be the effective cause of the resignation, it does not have to be the sole cause, and there can be a combination of causes provided that the effective cause for the resignation is the breach."
"On that analysis it appears that the crucial question is whether the repudiatory breach played a part in the dismissal."
"It follows that once a repudiatory breach is established if the employee leaves and even if he may have done so for a whole host of reasons, he can claim that he has been constructively dismissed if the repudiatory breach is one of the factors relied upon."
"Having regard to those two authorities, and there are others applying the same principle, it is clear to this Tribunal that when the Employment Tribunal asked itself what the principal reason for the resignation was it asked itself the wrong question. It should have asked itself whether the breach of contract involved in failing to pay the sick pay.." [that was the breach at issue in that case] "..was a reason for the resignation not whether it was the principal reason."
"The Tribunal has already indicated that where a Tribunal believe there may be more than one reason why an employee leaves a job, the correct approach is to ask what was the effective cause of the resignation."
"100. The Tribunal are satisfied that there may not have been a careful, logical thought process applied by the claimant when she decided to resign on24 November 2010 . There probably were two possible reasons in her head at the time i.e. the treatment from her employers and the difficulty that she was having in doing her own full-time job together with the caring for her partner. However, the Tribunal are satisfied from her own very honest evidence regarding what she has done after24 November 2010 that in reality she recognised that she simply could not continue to do her full-time job for North Ayrshire Council and do the caring job for her partner. 101. In the circumstances, therefore, the Tribunal are satisfied that the effective cause of the resignation was not the employer's actions (sic) during the series of incidents, but was the fact that she was unable to hold down her own job because of the care responsibilities that she was carrying out for her partner. 102. Therefore, the Tribunal consider that the resignation was not because of a breach of the implied term of trust and confidence by the employers and therefore there was no constructive dismissal."
"118. In all the circumstances, the Tribunal consider that if they had genuinely believed that the effective cause of resignation had been these series of incidents they would probably have considered that there had been a constructive dismissal since the series of incidents, especially the last incident, amounted to a breach of the implied term of trust and confidence. 119. However, as already stated the Tribunal are satisfied and are unanimous that the effective cause of resignation was the fact that the claimant simply could not cope with a full-time job as well as caring for her partner in Prestwick."