Eighty-five people were injured, among them 35 police officers, after Kaiserslautern supporters launched flares toward the main stand and Mannheim supporters stormed the pitch, temporarily interrupting a German Cup match between the two clubs.

Why pyrotechnics inside a stand are dangerous

Flares are not fireworks. A marine or hand-held flare burns at temperatures well over a thousand degrees Celsius and cannot be extinguished by stamping on it or dousing it with a drink. It burns for its full duration wherever it lands.

In a crowded stand that produces three distinct hazards: direct burns, dense smoke that reduces visibility in a confined space, and crowd movement away from the source. Historically, the last of those has been the most dangerous element in stadium incidents — people moving suddenly in a packed area is what causes crush injuries, and it is why injury counts in these events often exceed what the initial cause would suggest.

Launching one toward a stand adds intent to what would otherwise be recklessness, and that is the distinction prosecutors will work with.

The German argument about pyrotechnics

This is a long-running and genuinely two-sided dispute in German football, and it is worth setting out rather than assuming.

Organised supporter groups have campaigned for years for controlled, legal use of pyrotechnics in designated areas, arguing that the atmosphere is part of the culture, that prohibition has not stopped use, and that regulation with designated zones and trained handlers would be safer than the current position. Some clubs have been sympathetic.

Police and safety authorities have consistently rejected it, arguing that the devices in use cannot be made safe in a crowd, that designated zones are unenforceable, and that the argument for atmosphere does not outweigh burn and crush risk.

An incident with 85 injured is the strongest evidence the second camp has had in some time, and it will be used that way.

What follows in the German system

Two processes run in parallel and are frequently confused. Criminal proceedings deal with identified individuals — bodily harm, breaches of explosives law, trespass. Separately, the football association’s sporting court can sanction the clubs themselves, and it applies a principle of strict liability: a club is answerable for its supporters’ conduct whether or not it could have prevented it.

Available sanctions include substantial fines, partial or full stadium closures for subsequent matches, and orders to play behind closed doors.

Strict liability is itself contested. Its defenders argue it is the only mechanism that gives clubs a real incentive to police their own support. Its critics argue it punishes thousands of people who did nothing for the actions of a few dozen, and that collective punishment tends to harden the groups it targets rather than isolate them.

Why a cup tie between these two

Kaiserslautern and Mannheim are roughly seventy kilometres apart, and matches between geographically close clubs with large, organised supporter followings carry a different risk profile from an ordinary fixture — shorter travel, larger away contingents, and long-standing rivalry.

Cup competitions produce these pairings by draw rather than by league position, which means they can generate high-risk fixtures at short notice, sometimes at grounds and with policing arrangements not designed for them. Whether the risk assessment for this match matched the fixture is the question the review will have to answer.

Sources

• Current events summary — 85 injured, including 35 police officers, at the Kaiserslautern–Mannheim cup match (Goal)