The EU can't arrest anyone. It has no federal police, no marshals, no tanks. What it has is a lawsuit — and this week Brussels filed a whole stack of them against its own members.

In its latest infringement round, the European Commission decided to refer Spain to the Court of Justice over recognition of professional qualifications, Greece over discriminatory employment conditions for teachers in public schools, Romania for failing to pay pharmacies on time, and Hungary over price margin restrictions on food and drugstore products.

Spain actually got hit twice more in the same sweep: once for failing to transpose the directive on banks' own funds and eligible liabilities, and once — alongside Ireland, France and the Netherlands — for failing to transpose EU cybersecurity rules. Count the flags and this one sweep touches seven member states.

The escalation ladder, explained

A court referral is never the first move. It's the end of a standardised procedure — the infringement procedure — that the Commission runs as the EU's designated rule-enforcer (the treaties literally call it the "guardian of the treaties"). The decision to escalate is taken collectively by the College of Commissioners, usually in batched monthly rounds exactly like this one.

  1. Letter of formal notice. Brussels writes to the government: we think you're breaking EU law, explain yourself. The country typically gets two months to reply.
  2. Reasoned opinion. If the answer doesn't convince, the Commission sends a formal legal demand to comply, again with a deadline.
  3. Referral to the Court of Justice. Still no fix? The Commission sues. That's the stage all of this week's cases just reached.

Okay, but what can the court actually do

The Court of Justice of the European Union, sitting in Luxembourg, first rules on whether the country breached EU law. If it did, the government is legally obliged to fix it — but there's no bailiff. If a country ignores the judgment, the Commission can go back to the court a second time and ask for money: a lump-sum fine plus a daily penalty that keeps running until the law is fixed.

There's one shortcut worth knowing. When the offence is failing to transpose a directive — that is, not writing an agreed EU law into national law by the deadline, which is what the Spanish banking case and the four-country cybersecurity case are about — the Commission can ask the court to impose financial penalties already at this first referral, no second lawsuit needed. That makes transposition cases the fast lane to actual fines.

What happens next for Spain, Greece, Romania and Hungary

Now the slow part: written pleadings, hearings, an eventual judgment — infringement cases at the court routinely take well over a year. Governments often blink first; a country can defuse the case at any point by simply complying, and many referrals never reach a ruling for exactly that reason.

The cases themselves are a neat cross-section of what EU law actually regulates: Spain's recognition of professional qualifications and Greece's treatment of teachers are single-market and non-discrimination issues; Romania's late payments to pharmacies touch EU payment rules; Hungary's price margin caps on food and drugstore goods put a national cost-of-living policy up against single-market law. Hypothesis: the Hungary case is the politically loudest of the batch, because it pits a flagship domestic pricing policy directly against Brussels. Supporting this: it's the only case here targeting a deliberate, active policy choice rather than administrative delay. Against this: the source material gives no detail on Budapest's response, so how hard Hungary will fight is an open question.

Should you care?

Low-key, yes. This procedure is the only reason EU law means the same thing in Madrid as in Bucharest — without it, the single market is just a group chat with vibes. What to watch next: whether any of the seven comply before judgment, and whether the Commission pushes for immediate fines in the two transposition cases.