| 观察 | guān chá | to observe; to watch; to survey; to examine; observation; view; perspective; Classifiers: 个 | |
| 考察 | kǎo chá | to inspect; to observe and study; on-the-spot investigation | |
| 警察 | jǐng chá | police; police officer; Classifiers: 个 | |
| 检察 | jiǎn chá | to inspect; (law) to prosecute; to investigate | |
| 检察院 | jiǎn chá yuàn | prosecutor's office; procuratorate |
| 1 | The police are patrolling. | |
| 2 | I was arrested by the police. | |
| 3 | The examination results are disappointing. | |
| 4 | The police surrounded the house. | |
| 5 | The police officer arrested the suspect. |
