Weekend 'landing' of Greek Police special anti-crime unit comes after assassination of land developer, who was active on Mykonos, in Athens this month
The alleged protection racket emerged amid a police probe into a particularly violent hooligan rumble last week outside a football stadium in central Athens
A new wave of arrests involve suspects charged with running an extortion ring aimed at businesses, replete with bombings, arson, assault and drug trafficking
Development comes after several arrests, including within the Attica Regional government, on charges of blackmailing business owners by threatening to write-up violations
Suspects in extortion ring include Athens municipal and regional government employees as well as two culture ministry staff members