Investigations can be at a stage.Logical formLearned from21 sentences. Witnesses may stall an investigation.Logical formLearned from21 sentences. A committee may begin an investigation.Logical formLearned from21 sentences. Investigation can be for problems.Logical formLearned from21 sentences. Missteps may occur in an investigation.Logical formLearned from21 sentences. Investigations may undergo discussions.Logical formLearned from21 sentences. An investigation of referee may be concluded without material evidence.Logical formLearned from21 sentences. (Anthrax mailings) may undergo an investigation.Logical formLearned from21 sentences. Investigations can be into clashes.Logical formLearned from21 sentences. An investigation can be by an ombudsman.Logical formLearned from21 sentences. Actions can be a focus of an investigation.Logical formLearned from21 sentences. An investigation can be energetic.Logical formLearned from21 sentences. (State employees) may be subpoenaed in an investigation of a governor.Logical formLearned from21 sentences. A record may undergo an investigation.Logical formLearned from21 sentences. An investigation can be into bid-rigging.Logical formLearned from21 sentences.