。
She sought police protection.
Literal
She [topic-は] police [to-に] protection [object-を] sought.
求める carries a stronger weight than 頼む or 願う — it implies actively demanding or seeking something one is entitled to, often used for legal claims, formal requests, and rights. The combination 保護を求める is the standard collocation for seeking protection from authorities — common in news writing about domestic violence cases, witness protection, asylum, and similar serious contexts.