Defunct German firm Haarmann Hemmelrath is set to appeal against a Duesseldorf court ruling ordering the firm to pay a chunk of the legal costs following its successful defence of a negligence claim from a former client.

The court ruled that costs, which are understood to be in the region of €20m (£14m), should be split between the two parties, but the law firm says former client Werhahn should foot the whole bill.