In case of (в случае, в случае если)

To outline what to do in specific scenarios, Russian relies on two main structures based on в случае (in case of).

В случае (In case of) + Noun

When followed directly by a noun, use the preposition в случае. It always requires the following noun to be in the Genitive case.

In case of a violation of the rules, we will block the door.
В случае нарушения правил мы заблокируем дверь.
In case of an evacuation, you need to find three codes.
В случае эвакуации вам нужно найти три кода.

В случае если (In the event that) + Clause

If the condition is a full dependent clause with a subject and a verb, use the conjunction в случае если. When establishing protocols for things that might happen, the verbs describing these conditions are typically conjugated in the future tense.

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