Crime Scene Investigation


CrimeScene Investigation

CrimeScene Investigation

Acriminalinvestigation is one of the fields that require professionalism incarrying out the process. Identification, collection, preservation,and analysis of the evidence should be thoroughly recorded anddocumented. The process of collectionshould always commence with the most fragile objects, for instance,the items that can easily get lost or disappear from the crime scene.In addition to that, a lot of consideration should bedevelopedtowards the things that must bemovedout of the crime scene(Fisher, 2012). Photographsand images should be taken and documented since they are essentialtools in the investigation especially if they accompanied thepremises of the accusations in the crime case.

EvidenceThat I Will Collect from the Crime Scene and Its Importance in theInvestigation Process

Forinstance,in our case, the first evidence that ought to becollectedfrom the scene of the crimewas the images and photographs of the scene. The position of the bodyof the lady was lying on plus the items that werepresentedin the narration were very crucial in analyzing the situation. Theycould give the investigator thereal impression ofwhat happened at the scene before anyone could have tampered with theplace. The proximity of the wall, the traces of the grass on the bodyof the woman and the jeans at the scene could be revealed andinformed analyzationand arriving at the set of possible occurrence that might have takenplace atthe crime scene. It is due to this fact that the investigator willrefrain himself from unnecessaryinvestigations that can lead to the loss of time, such asinvestigating a homicidein our case.

Thesecond evidence that I would have collected is the freshblood stainsat the scene of the crime, both inthe woman body and on the ground. It will allow DNA examination inthe process of arriving at the exact criminal offenders who couldhave murdered the woman. Also,the collection of other loosely biological evidence, such as the wetareas on the woman body, the grasses and any other objects thatfingerprints can be retrieved will form thefirm basisfor investigating such crimes. Biological evidence alongside thefingerprints will be ofprimary importance in theassessmentof the specific individuals and criminals that might have been at thecrime scene (Lee,&amp Pagliaro, 2013).The fingernails will also form part of my evidence collected from theplaceof the offense.It is the type of proofthat one can match to the particular person it came from even afterseveral months have passed after the offensewascommitted.Known samples from the victim and suspect will beneededin this scenario for clearcomparison.

Lastly,I will collect the assets and materials atthe scene of the crime,such as the t-shirt, handbag, the jeans as they can beusedin matching and investigating the potential suspects in this case.These items also may contain biological information such as urine,blood,and sweat. The belongings also will reveal the possible intentions ofthe criminal behind this act.

Meritsof Attending the Scene of Crime where the Woman Body was Found

Visitingthe crime scene where the body wasfoundwill provide an in-depth primary analysis of what exactly took placeas opposed to the secondary data. The second person narration as inour case is likely to leave out vital information that can lead tothe arrest of the real people behind such acts. For instance, onewill be able to view the body position, any landmarks on the groundsuch as footprints and any possible escape points from the scene.They form the major basement for the investigation process. As aprofessional investigator,I will be in a good position to secure the place of the crime scene,identify all the necessary evidence available atthe site ascompared to passers-by, like in our case. One can estimate the exacttime that the crime wascommittedwhen he or she attends the crime scene. The distances and the anglescan also bemeasuredwithrespect tothe sceneand the possible entry and escape points of the criminals. The facialexpressions, eye color, the faciallook of the woman can only beidentifiedif an investigator visits the scene of the crime.Here I will opt for attending the scene from clear, detailed andprecise evidence alongside the narration of what happened at thescene.

ForensicScience Evidence that I would Request from the Pathologist to Findout Whether a Sexual Assault Occurred

Forensicscience evidence is relevantin the caseat arriving on ifthe actwas a sexual assault. There are somesamples that I will need from the pathologist in determining if thewoman wassexually assaultedbefore she died. The semen and any other liquid found in the virginaltrack of the woman will be essential in examining the possibilitiesof sexual abusein this case. Also,the pathologist will have to give me the samples of any foreignblood stains found in the private parts of the woman. The images ofthe vaginal track and the surrounding areas any fingerprintsfound on the woman body especially the private parts the strains andinjuries images on the woman body the overalltemperature and the heartbeatof the woman beforeher death (Dutelle, 2016).

Besidesthe above samples, I will also need the woman inner clothing’s plusits images if they had beentampered with.Any clothing from the crime scene will be essentialin analyzingthe sexual assault.

Theother Samples that I Would Require to act as Controls in this Case

Controlsamples are necessaryin our case in matching the suspect to the available evidence in thescene. Forinstance,in this situationof a woman,the first suspect is the man walking with his dog. I will need to gethis fingerprints,personal information and even the information about his heartbeat andtemperature at that particular time to act as the control evidence. Iwill alsoneedthe samples from the adjacent unstained areas,besidesthe crime scene to note the difference in the analysis of the two.After collecting the grass samples and other plant vegetation in thescene,I will need to collect the same from nearbyplaces as the controls. The possible suspects, the residence and theidentified or mentioned individuals who might have beenseennear the crime scene must be the controls. That is, the fingerprints,DNA and fingernailsof these peoplemust be collected todetermine whether theymatch any that has beencollectedfrom the scene.


Dutelle,A. W. (2016).&nbspAnintroduction to .Jones &amp Bartlett Publishers.

Fisher,B. A., &amp Fisher, D. R. (2012).&nbspTechniquesof .CRCPress.

Lee,H. C., &amp Pagliaro, E. M. (2013). Forensic evidence and crimescene investigation.&nbspJForensic Inv,&nbsp1(1),5.

Crime Scene Investigation

CrimeScene Investigation

CrimeScene Investigation

Crimeshappen continuously each and every hour across the globe. The crimescene investigators and the police always face an uphill task offinding the culprits. Additionally, only a few of the crimes thattake place are reported. Moreover, only a few of the reported casesare attended by the police for investigation. According to the law,crimes must be investigated before culprits are apprehended. As such,there ought to be substantial evidence linking the suspect to therespective crimes. If the evidence suggests beyond reasonable doubtthat the perpetrator committed the crime, then he/she can be fined orjailed depending on the offense. However, if the evidence is notsubstantial, then the accused can be freed. As such, this paper willdwell on the preliminary investigations that are utilized to collectevidence [ CITATION Mar133 l 1033 ].

Guidelinesfor Conducting Preliminary Investigations

Itis important to note that, once a crime occurs, the police mustconduct what is regarded as preliminary investigations. An initial orpreliminary investigation entails an analysis that occurs instantlyonce a crime has been detected. It is the procedure whereby the crimeinvestigators and the police attempt to determine the suspects of acase. In situations where the crimes are severe, the prosecutor leadsthe investigations. In many instances, the police officers areusually the first people to arrive at the scene to prevent anyadditional threats that may occur after the crime. Other firstresponders include law enforcement and paramedics. Once at the scene,the first step entails an evaluation of the area. The law enforcersdetermine the entry and exit points while assessing the area for anywitnesses or evidence. The responding officers must also arrive atthe scene quickly to ensure the suspects are not within the area andthe affected victims are offered the appropriate emergency care. Theymust be the first to arrive to preserve the integrity of the crimescene. In general, the guidelines for a preliminary investigationinclude interrogation, physical evidence, and interviewing. The sceneof the crime is also a vital facet. The crime scene is then dividedinto three key phases i.e. crime scene recognition, potential andwitness suspects, and the initial crime scene. As such, theguidelines for conducting a preliminary investigation has to protectlife, render aid, secure and protect the crime scene using the tapesand bar any unauthorized persons from accessing the area, secure andsafeguard the evidence [ CITATION Pag13 l 1033 ].


Follow-upinvestigations can be adequate to conclude a case. To conduct aneffective follow-up, the steps below can be utilized as a strategy:

  • Review and analysis of the previous reports from the preliminary stage

  • Carrying out additional interrogation and interviews

  • Looking for additional information from other agencies

  • Collecting any physical evidence

  • Counter-checking the lab examinations

  • Arranging the information appropriately

  • Identifying and detaining the suspects

  • Assisting in searches and court proceedings

  • Checking the histories of the suspects

Assuch the follow-up session is also quite detailed to tie any looseends. The advantage of these steps is accuracy. For example, theinvestigators` assessment of the suspects’ histories assists indetermining their behavior. As such, it can be used to strengthen thecase against a particular suspect.

Comparisonof two Major Crimes

Murderand manslaughter are two closely related crimes that are almost alikeregarding the means of reporting. According to the common law, murderis the intentional killing of another person. In other words, it iscommitted with malice aforethought as the perpetrator intentionallyinflicts bodily harm on the victim. Murder is categorized intosections depending on the gravity. On the hand, manslaughter is theunlawful killing that does not involve malice. The absence of maliceaforethought implies that the act entails less moral blame. However,differentiating this two aspects is usually hard for theinvestigators. They may also be interrelated while reporting.However, the key difference between the two lies with the maliceaforethought. It determines whether the murder is intentional [ CITATION Mar133 l 1033 ].

Threemost important characteristics of an effective criminal investigator

Thereliability to obtain and retain vital information that applies tothe particular case is a vital feature of an effective investigator.He/she must know how to communicate excellently i.e. with socialskills to make people comfortable. The investigator must also beopen-minded on the case. Any sort of bias has the propensity to cloudthe judgment about a person, thought, or situation. An investigatormust be patient enough to monitor the approaches instead of shiftingideas. Emotions must not sway a good investigator. In other words,he/she ought to be emotionally stable.

Roleof the Media

Sometimesthe media is permitted to have too much information about potentialsuspects, police investigations, and surveillance. There are manyinstances where innocent individuals have been portrayed as guilty inthe public eye due to media influence. In such cases, the suspectscommit suicide due to the huge pressures. As such, the criminalinvestigation process must maintain the right balance concerning thefreedom of information via the media and privacy rights. In manyinstances, the media only strives to get coverage and entice theviewers without necessarily dwelling on the repercussions. They mayspread misleading information that affects the suspectsphysiologically. Apart from that, without limitations, the suspectsmay be portrayed as criminals even without adequate evidence.Sometimes the perpetrators as are deemed by the media as innocent. Assuch, the media and the public make their judgments that may beunfair to the suspects [ CITATION Pag13 l 1033 ].


Huizinga, M. C. (2013). Critical Criminal Justice Issues. Washington.

Pagliaro, H. C. (2013). Forensic Evidence and . Journal of Forensic Investigation.