Recording: recording the voice of someone or something and playing it at a certain time to make the listener have an illusion.

Adjust the clock: adjust the clock time during the witness's unconsciousness, so that the witness has the illusion of time.

Temperature: temperature is used to influence the state of the deceased and interfere with the forensic doctor's judgment on the time of death.

Ice cube mechanism: first control the victim's actions, and then use the ice cube manufacturing mechanism to commit crimes.

Photos: Photos taken on festivals or anniversaries every year can be used to prove that you were taking part in activities when the case happened and get an alibi.

Repeated events: Use things that appear every once in a while as an alibi, such as replayed series, chimes, repeated holiday activities, etc.

Camouflage: The act of pretending to be a victim. Delay the time of the crime.

Timing device: using remote-controlled time bombs or other organs to commit crimes.

Shortcut: use a path that others don't know to commit a crime in a short time, such as a clear waterway.

Perjury: bribing a witness or forensic doctor to testify for himself.

Risks: pretending to be another victim or pretending to be injured can't commit a crime.

The second scene: transfer the victim's body and forge the location of the crime.

Secret room: set up organs or other deadly things in the room, lock the room from the inside and make a secret room.

Illusion room: create a room with the same layout, and substitute witnesses into the room to make them misjudge the time of the crime.

Fake death: the first situation makes you a fake victim, and then continue to do it.