If an employer makes a job offer and the candidate accepts, can the employer change its mind and withdraw the job offer if nothing has yet been put in writing?

A contract of employment comes into force as soon as there has been an offer of employment and an unconditional acceptance of that offer, even if the offer and acceptance were communicated verbally. This means that any withdrawal of an unconditional job offer will constitute a breach of contract, entitling the prospective employee to sue the employer for damages, which in most instances would be an amount corresponding to payment for the period of notice to which the employee would have been entitled had he or she started work and then been dismissed.