Strange things are happening in Kyiv. In spring 2017, two prominent Ukrainian politicians — Mykola Martynenko, a former MP, and Roman Nasirov, former head of country’s fiscal service — were arrested on corruption charges to significant fanfare. Soon, however, both men were released: Nasirov on a bail of Hr 100 million (£2.9 million) paid by his wife, and Martynenko without any bail. While the cases remain under investigation, the two suspects are free to move.

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