I read this article with interest, despite being based on the American legal system, as I have noticed a growth in demand for "litigations loans" over the last few years.  

Some specialist financial institutions offer loans to cover the estimated costs that may be incurred within financial disputes in divorce proceedings.  This is normally only necessary when court proceedings are needed to obtain disclosure, valuations and a final order.   In many cases these costs are not incurred as agreements are reached by mediation or negotiation instead.

These kind of loans aren't needed in all court cases, and are only required when  one spouse does not have the financial resources required to pay their own legal court costs.  Obviously any decisions about taking loans such as these must be done with open eyes on the cost proportionality of the overall benefit to be obtained versus the legal costs to be incurred.