1. Sleuth = a detective.
2. detention = the action of detaining someone or the state of being detained in official custody.
3. coalition = a temporary alliance for combined action, especially of political parties forming a government.
4. aftermath = the consequences or after-effects of a significant unpleasant event.
5. emphasized = give special importance or value to (something) in speaking or writing.
6. Envisaged = Foresee
7. demarche = a political step or initiative.
8. fretful = feeling or expressing distress or irritation.