User:Chekhov MacGuffin/Internal rules in Detective Conan - Revision history

192.88.134.10: /* Time of death estimation */

2020-09-02T23:18:44Z

‎Time of death estimation

192.88.134.10: /* Time of death estimation */

2020-09-02T23:18:07Z

‎Time of death estimation

66.248.202.10: /* Poison */

2019-07-18T02:47:18Z

‎Poison

185.93.229.10: /* Murder methods and motives */

2017-05-29T16:45:08Z

‎Murder methods and motives

Chekhov MacGuffin: /* Disguise */ .

2017-05-29T07:29:47Z

‎Disguise: .

Chekhov MacGuffin: /* Disguise */ suggested method

2017-05-29T07:29:10Z

‎Disguise: suggested method

Chekhov MacGuffin: /* Disguise */ reorder sections

2017-05-29T07:22:08Z

‎Disguise: reorder sections

Chekhov MacGuffin: /* Plastic Surgery */ cleanup

2017-05-29T07:21:07Z

‎Plastic Surgery: cleanup

Chekhov MacGuffin: clean up

2017-05-29T07:14:23Z

clean up

Chekhov MacGuffin: What? As is what does this actually mean and what is the intent?

2017-05-29T06:39:11Z

What? As is what does this actually mean and what is the intent?

@@ Line 145: / Line 145: @@
 * The apparent time of death can be altered, even affecting professional estimations, if the body has been in abnormal temperatures. Warm temperatures speed up the progression of the time of death signs and make the death appear to have happened much earlier.<ref>Holmes Lovers Club Murder</ref> Cooler temperatures make the death appear to have happened later.<!--several but can't think of one offhand -->
 * The time of death can be obscured by thorough burning of the body.
-* Abnormal conditions such as being submerged can also affect the apparent time of death
+* Abnormal conditions such as being submerged can also affect the apparent time of death.
-* Once the body has decomposed to the bone, the application of lime may (speed up decomposition Code of stars and tobacco) or slow down decomposition (Teitan murder with Rumi). (I need to work this out later.)
+* Once the body has decomposed to the bone, the application of lime may (speed up decomposition Code of stars and tobacco) or slow down decomposition (Teitan murder with Rumi).
 === Conflicting witness description ===

@@ Line 145: / Line 145: @@
 * The apparent time of death can be altered, even affecting professional estimations, if the body has been in abnormal temperatures. Warm temperatures speed up the progression of the time of death signs and make the death appear to have happened much earlier.<ref>Holmes Lovers Club Murder</ref> Cooler temperatures make the death appear to have happened later.<!--several but can't think of one offhand -->
 * The time of death can be obscured by thorough burning of the body.
-* Abnormal conditions such as being submerged can also affect the apparent time of death (this was an early case, the one where Ran was drowned in a sink I think?)
+* Abnormal conditions such as being submerged can also affect the apparent time of death
 * Once the body has decomposed to the bone, the application of lime may (speed up decomposition Code of stars and tobacco) or slow down decomposition (Teitan murder with Rumi). (I need to work this out later.)

@@ Line 96: / Line 96: @@
 === Poison ===
 ==== Cyanide ====
 The cyanide ion ( CN<sup>-</sup> ) is the most common poison used for murder in Detective Conan. Here are the in-universe rules that it follows:

@@ Line 184: / Line 184: @@
 *A secret point of ingress and egress, such as a secret passage or tampered window. This is quite rare.
 *The culprit never leaves the room, but instead mixes in with the first discoverers and appears to have come from the outside. This is very rare.
 === Black Organization's involvement ===

@@ Line 19: / Line 19: @@
 * Adults cannot disguise as a whole child because of the blatant difference in height, although they may be able to disguise as part of a child<ref>The Kirin's Horn That Vanished into the Dark</ref>, or just the voice.
 * Actors, actresses, and magicians can be assumed to have some level of disguise ability unless it is stated otherwise.
-* Differences in skin color can be hidden even on parts of the body which have to withstand wear such as the fingertips.<ref>[[Vermouth]] disguised the dark-skinned [[Rei Furuya]] as the notably pale [[Shuichi Akai]]</ref> This is done without the use of latex. One culprit used scented foundation which left traces of scent where the culprit touched.<ref>[[Volume 92#Rumi Wakasa's Neighbor Murder Case|Rumi Wakasa's Neighbor Murder Case]]</ref>.
+* Differences in skin color can be hidden even on parts of the body which have to withstand wear such as the fingertips.<ref>[[Vermouth]] disguised the dark-skinned [[Rei Furuya]] as the notably pale [[Shuichi Akai]]</ref> This is done without the use of latex. One culprit used scented foundation which left traces of scent where the culprit touched.<ref>[[Volume 92#Rumi Wakasa's Neighbor Murder Case|Rumi Wakasa's Neighbor Murder Case]]</ref>
 === Latex Masks ===

@@ Line 34: / Line 34: @@
 * It is unclear if one latex mask can be worn on top of another and removed without disruption. This situation has never been definitely shown in Detective Conan manga canon, while it has in Magic Kaito.
 * There is significant inconsistency about how long it takes to make a latex mask. Kaitou Kid could make a Shiho Miyano on the spot after Conan asked him to<ref>Mystery Train</ref>, while Yukiko is shown taking many hours to apply a single mask.<ref>[[Head-to-Head Match with the Black Organization: A Dual Mystery on a Full Moon Night]]</ref>
 === Character-specific Rules ===
@@ Line 61: / Line 53: @@
 * Yukiko seems to need time on the order of hours to make a latex mask.
 * She has so far been limited in her disguise to adult women and her husband.
 == Crime Scene Investigation ==

@@ Line 36: / Line 36: @@
 === Plastic Surgery ===
-So far this technique is limited to very few cases.
+Plastic surgery is the rarest disguise technique by far.
-* Can alter a person's face and outlook completely and fool even relatives of the disguised person. Limited to same gender only.
+* Plastic surgery can be used to copy a face or create a new one. Limited to same gender only.
-* Plastic surgery takes time and money.
+* Plastic surgery can fool even relatives of the disguised person.
-* Plastic surgery cannot alter voice. The involved person might find excuses by faking a hoarse voice, or if no one remembers the voice of the disguised person.
+* Plastic surgery takes money and time to heal on the order of months for major operations.
 === Character-specific Rules ===

@@ Line 145: / Line 145: @@
 * Once the body has decomposed to the bone, the application of lime may (speed up decomposition Code of stars and tobacco) or slow down decomposition (Teitan murder with Rumi). (I need to work this out later.)
-=== Witness description ===
+=== Conflicting witness description ===
-There are cases where the witness lie about the culprit description for some ulterior motives; however, this section only considers witnesses trying to cooperate to find the culprit.
+Several cases rely on resolving contradictions in poor quality witness testimony to identify the culprit. One subtype are cases where various conditions imposed upon the witness lead to testimony that does not match any of the suspects. Another type of case has several witnesses disagree about the culprit's features and the detective must resolve the contradictions.<ref>Cases of the former type include [[Boy Genta's Misfortune]], [[The Shadow of the Black Organization]], [[Kobayashi-sensei's Love]]. Cases of the latter include [[Metropolitan Police Detective Love Story 4]], [[The Detective Boys in a Grove]], and the identity of Rum.</ref>
-* The witness often recalls partial description regarding the culprit. Common descriptions include face, gender, height or voice. The initial description could align to more than one suspect, or none.
-* Matching the description to the culprit is often the central part of the case, but is rarely the only clues.
+* The witness(s) often only recalls a partial description of the culprit. Common observations include gender, height, voice, clothing, and distinctive features such as tattoos.
-* Some clues are intentionally hidden if that makes solving the crime too easily.
+* Incorrect observations are often distorted by the surrounding context, and identifying the context of the observation makes the error apparent.
-* The description can be distorted by the surrounding context, or by the witness's expected perception regarding the culprit.
+* Incorrect observations are often distorted by the witness's expected perception of the culprit, and identifying this combination of cues and the witness's bias makes the error apparent.
-* In case of multiple witnesses, each will give a different testimony regarding the culprit and all the above rules apply, but in the end the clues all point towards the same culprit.
+:* If there is a culprit and a victim, the witness may misattribute traits of the victim to the culprit and vice-versa under certain circumstances (e.g. voices).
 == Murder methods and motives ==

@@ Line 156: / Line 156: @@
 === Motive ===
-Murders are almost never random (less than 5% for sure). Culprits almost always have a specific motive to target their victims. About the only time random victims are chosen is when the culprit needs to force a misinterpretation to throw the police and future victims off the trail (e.g. create an alibi, disguise the method, etc). The killing method does not rely on random chances and guarantees to kill the victim if successfully executed; having the victim alive or targeting the wrong victim is often outside of the murderer's intention (this can be used in deduction to show the culprit really wants to kill the victim).
+Murders are almost never random (less than 5% for sure). Culprits almost always have a specific motive to target their victims. About the only time random victims are chosen is when the culprit needs to force a misinterpretation to throw the police and future victims off the trail (e.g. create an alibi, disguise the method, etc).
 The three most common types of murder motives in multi-suspect murder cases are: