examination, investigate
検 centers on careful inspection to uncover facts: examining something closely or investigating to find out the truth.
検 is the modern simplified form of 檢. The older form combines 木 (wood) with 僉, which likely contributed the sound and the idea of checking or examining, possibly related to wooden tally sticks used for verification.
The left side 木 suggests a wooden tool, and the right side 㑒 looks like a person 人 under a cover with a mouth 口, as if inspecting something. Picture a wooden magnifying glass being used to examine a suspicious object.
For ケン, imagine a detective named Ken examining a wooden clue: Ken -> ケン, and he investigates the scene.
looking up (e.g. a word in a dictionary); search (e.g. on the Internet); retrieval (of information); reference
inspection (e.g. customs, factory); examination; test; check; scan (e.g. MRI, PET); audit
consideration; examination; investigation; study; scrutiny; discussion; analysis; review
verification; inspection
detection; sense (e.g. sensor)
official certification; official approval; inspection; verification; examination
criminal investigation; prosecution
public prosecutor
detailed inspection; thorough examination; checking
exploration; expedition
public prosecutor
vehicle inspection
District Public Prosecutor's Office
censorship
medical examination (for a specific condition or disease); health screening
committing a suspect to trial; referring a case to a public prosecutor
arrest; roundup
inspection; examination; check
quarantine; medical inspection
Public Prosecutors Office
Board of Audit
examination of a body to determine if a crime has been committed
re-examination; review; reconsideration; reappraisal
exploration party; expedition team