At A Glance Forensic Medicine

*Speed Ball — Combination of Heroin (Opioid) & Cocaine

*Section 191 IPC — Giving false evidence (purjery) under oath OR Hostile witness

*Section 193 IPC — Punishment for false evidence (Punishment for purjery)

*Humerus length is 1/5th of the height.

*Hepburn Osteometric board — An instrument used to measure length of long bones.

*Gustafson’s method — useful for age estimation in persons older than 21 years of age,

depending upon physiological changes in each of dental tissues

 

*Fracture of hyoid bone very common in throttling (manual strangulation)

*First sign of putrefaction Greenish discolouration of body in right iliac fossa due involvement of caecum.

*Pugilistic attitude (Boxing/fensing/defence attitude)  —

It is heat stiffening due to denaturation or coagulation of protein

It occurs in both anteportem and postmortem burns

 

*Section 319 IPC — Defines hurt

*Section 320 IPC — Defines grievous hurt

*Lucid interval is seen in insanity and in lightening burns

*Magistrate’s inquest is done in case of epidural hemorrhage

*Filigree burns or arborescent marking seen under section 176 CrPC in case of dowry death

*Sodomysexual intercourse through anus

*Bestialitysexual interxourse by a human being with a lower animal

*Preservative for blood in case of CO (carbon monoxide poisoning) — Liquid paraffin

*Wallace’s formula Rule of 9 for estimation of burn area

*Antidote of acetaminophen (paracetamol) posioning — N-acetyl-cysteine

*Antidote of opioids posioning — Naloxone or naltrexone or nalmefene

*Antidote of benzodiazepines posioning — Flumazenil

*Antidote of dhatura poisoning — Physostigmine

*Phossy jaw is caused by phosphorus poisoning

*Pistols and revolvers are small, so referred as hand guns

*VitriolageThrowing of any corrosive on another person, comes under section 320 IPC

*Preauricular sulsus is used for determination of sex

*Magenstrasse is term applied to the pathway of acidic agent in stomach

*Post mortem staining of carbon monoxide poisoning Cherry red colour

*Post mortem staining of cyanide poisoning Pink or bright red

*Post mortem staining of opium poisoning Black

*Post mortem staining of KCl poisoning Chocolate or coffee brown

*Post mortem staining of nitrites poisoning Reddish brown

*Post mortem staining of phosphorus poisoning Dark brown or yellow

*Post mortem staining of H2S poisoning Bluish green

*Death occurs early in fresh water drowning than salt water drowning

*Substance used for organ preservation for histopathological examination is  – 10% formalin

*Brain is stored in which preservative for autopsy study 10% Formalin

*Underwater autopsy of the heart is done in  — Air embolism

*Blood samples for DNA fingerprinting should be transported in — EDTA

*Section 304-B IPC punishment for dowry death (10 years or life time)

*Criminal negligence is punishable under section 304-A IPC

*Section for punishment of rush and negligent driving is —  304-A IPC

*Punishment of culpable homicide not amounting to murder 304 IPC

*A child is viable after 210 days (7 months) of intrauterine life

*Magnan’s symptoms is seen with cocaine poisoning

*Xyphoid process fuses to the body of sternum by — 40 years

*Manubrium fuses to the body of sternum by — 60 years

*Most common dactylography Loops pattern (67 %)

*Poisoning of the following associated with dialted pupil

 Dhatura, Atropine, Tricyclic antidepressants, Ethyl alcohol

*Cyanide poisoning can occur in rapid or excessive administration of sodium nitroprusside.

*Classical gun powder (Black powder) consist of Charcoal (15%) + sulphar (15%) + KNO3 (75%)

*Blackening around the entry wound of a firearm injury is due to — Smoke

*Electric burns are also referred as Jule’s burn

*Dribbing of saliva is a sign of antemortem hanging

*Manual strangulation is the most violent form of asphyxia

*Tantative cuts are seen in — Suicide

*Dying declaration comes under — section 32 IEA

*Minimal age for giving consent for organ donation in India is — 18 years

*Presence of 4 carpal bones at the age of — 4 years

*Chvostek’s sign & Trousseau’s sign are seen in — Oxalic acid poisoning

*Odors associated with poisonings

Garlic like —  Phosphorus

Rotten eggs Hydrogen sulphide     

 Fishy or musty Zinc phosphide

Bitter almonds Cyanide (HCN)

AcridChloral hydrate

Burnt rope Cannabis

Phenolic smell Carbolic acid

*Puppe’s rule deals with multiple impact injuries.

*Haase’s rule rough method for calculating age of the fetus

*Incest is not an offence in India

*Barberio’s test is used to diagnose presence of seminal fluid

*Margins are everted in incised wounds

*Split laceration is seen with — Blunt perpendicular impact

*Sin of Gomorrah Buccal coitus

*Primary relaxation is present in Rigor mortis, but absent in cadaveric spasm

*Most common organ affected underwater blast injury is — Intestine

*Section 82 IPC A chind under the age of 7 years is incapable of commiting an offence

*A person is legally declared dead if not seen for 7 years from the date of declared missing.

*Atria mortis Gateway of death/Death’s portal of entry

*Only a executive magistrate can order for exhumation

*Tandem bullet (Piggey tail bullet) — One-behind-other bullet

*Key hole entry wound Yawning bullet

*Calibre of a firearm injury is — Distance between two diagonally opposite lands

*Souvenir bullet –A bullet left in the body for long time and surrounded by fibrous tissue

*Involuntary muscles (Heart) involved first than voluntary muscles in rigor mortis

*Pin point pupil can be caused by — Opioids, organophophates & pontine hemorrhage.