Robert Pasteiner was arrested before he could fly to the Philippines to meet a 12-year-old girl.
It follows BBC News exposing drug gangs, money laundering, immigration crime, and ghost directors linked to shop fronts.
Kevin Parle is suspected of murdering Lucy Hargreaves, 22, and Liam Kelly, 16, more than 20 years ago.
Matthew Slate, from north London, has been jailed for six years for running paedophile forums.
Two men are in jail after being caught smuggling drugs to an isolated river jetty.
Dilshad Shamo and Ali Khdir ran the "sophisticated and successful" operation from a car wash business.
The group is believed to hold the Vietnamese passports of those smuggled into the UK as debt bondage.
Henri Nikolli, 19, from Welwyn Garden City, is jailed for multiple drugs and firearms offences.
A judge tells Ramal Briem he should be deported to Iraq once he serves his sentence.
