Tabernula is proving to be quiet an effective measure against financial wrongdoing. Don’t bother looking up the word, you won’t find it in the dictionary. It’s a codename for an investigation into wealth management firms’ involvement in insider trading in the UK.

The Financial Services Authority (FSA) is going after several blue-chip firms suspected of market manipulation. According to a report on FT.com, the FSA has made nine arrests so far and is currently probing deals worth £22 million ($34.4 million).

The clampdown is a sign that regulators in the UK, considered far less aggressive than their American counterparts, are upping their game, realizing that a fine and a ban was not enough of a deterrent.