Brussels, Belgium

Rules to follow in Brussels

2 laws, restrictions, and customs in Brussels that travellers often break without knowing — and the fines or consequences that follow.

Last updated 2026-08-09

1. Insulting public officials is a criminal offence

Verbally insulting a police officer or other public official in Belgium is a criminal offence that can lead to arrest and prosecution, not just a fine. This is more strictly applied than in most neighbouring countries.

Where: Legal
Cost: Criminal charge; fine or imprisonment
Tip: If you have a dispute with an official, remain calm and formal. Seek assistance through a consulate if you believe you are being treated unfairly.

2. The linguistic divide is real — default to French in Brussels, Dutch in Flanders

Belgium is divided into French-speaking Wallonia, Dutch-speaking Flanders, and bilingual Brussels. Starting a conversation in the wrong language can cause genuine offence. In Brussels, French is generally the default.

Where: Etiquette
Tip: In Bruges, Ghent, and Antwerp, try Dutch (or just English). In Liège, use French. In Brussels, French is generally the safest default.

Rules to follow in Brussels

1. Insulting public officials is a criminal offence

2. The linguistic divide is real — default to French in Brussels, Dutch in Flanders

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