Experts may join an investigation.Logical formLearned from25 sentences. A trial may follow an investigation.Logical formLearned from25 sentences. An investigation can be into concerns.Logical formLearned from25 sentences. A (police investigation) can be international.Logical formLearned from25 sentences. Investigations can be painstaking.Logical formLearned from25 sentences. An investigation can be into some attacks.Logical formLearned from25 sentences. Arrests may stem from an investigation.Logical formLearned from25 sentences. A government-agency may undergo investigations.Logical formLearned from25 sentences. An office may complete an investigation.Logical formLearned from25 sentences. Documents can be about an investigation.Logical formLearned from25 sentences. Investigation can be for a sinking of a trawler.Logical formLearned from25 sentences. Investigations can be yearlong.Logical formLearned from25 sentences. An ambassador may describe an investigation.Logical formLearned from25 sentences. An investigation can be persistent.Logical formLearned from25 sentences. Charges may come after an investigation.Logical formLearned from25 sentences.