Sample Case Studies Paper on Crime Scene Investigation


Preliminary investigations are undertaken to assess whether a crime did occur. Thus, it
involved gathering, preparing, preserving, and analysing evidence from a scene to assess
whether a crime occurred. The information is collected at the first stages of the investigation
and thus need to be backed with more information since criminal investigation are bound to
conviction on bases of “beyond reasonable doubt” (Borum, 1996). This necessitates for
follow-up investigation to clear all doubts associated with the crime. Thus, the current
analysis will drill into processes and facets of crime scene investigations.

Guidelines for conducting preliminary investigation of criminal nature

Criminal cases are different from civil cases on bases and the extent to which evidence is
needed. A criminal case will require the prosecutor to prove beyond reasonable doubt that a
criminal offences did transpire before conviction. Thus, they need to lay all necessary facts
without a doubt. The first step is to obtain proper care for the injured party. For instance, take
them to hospital in a case of robbery with violence (Borum, 1996). The officer should assess
the scene of unusual item, and anything around the victim that could be used for the case.
Then, they should determine if a crime occurred, and thus take an enforcement action. The
officer will make sure they secure the crime scene so that they preserve evidence. Later,
witnesses should be interviewed. Finally, they should compile a report to be used as a base
for post-crime analysis (Panner, 2012).

Importance of computer-aided investigation

Computers are a great source of information that would be useful for investigation purposed.
For instance, use of computer forensics examinations helps in recovery of data that had
earlier been hidden (Turvey, 2014). Thus, it helps in retrieval of data that was not found

during the preliminary as it had been seized. Hence, it gives back-up information to the
investigations, provides more evidence, and thus helps eliminate doubt into existence of a
criminal offense (Anuszkiewicz, 2004). The follow-up investigations are used to gather more
necessary data to the crime. Thus computer-aid would a useful tool since retrieval of the data
would add more facts to the case.

Means of reporting crime

The nature of the crime determines how it should be reported. There are wide range of
difference on how one crime is reported from another of a different nature (Turvey, 2014).
For instance, there would be a difference in reporting of crime of sexual harassment and
domestic violence.

For the sexual harassment some crimes would fall under civil cases, while others would
quality to be criminal cases. Assault in form of physical biting qualifies to be a criminal
offense. Therefore, reporting a sexual harassment need qualification of whether it qualifies
for crime while physical biting in domestic violence directly qualify for a crime. Although
both may be to the same person, physical domestic violence can be seen from wounds, while
sexual harassment need be scientifically proofed.

In both cases, the victim need be protected and proof for physical damage obtained from a
hospital. Both cases may require post-investigation to the case as well as witness statements.
However, both crimes have widely remained underwater since most crimes are not reported.
Both are also hard to determine since they could be self-interest driven.

Characteristics of effective investigators

It is key to have investigators who get to the matter and who get credible information that
would quality to be reported. Consequently, qualify a crime. Therefore, the main
characteristics of a good investigator include;

 A good investigator need to practice professional ethics. This is to ensure all
information obtained is credible, accurate, and can be relied on. In addition, they
should ensure confidentiality of information gathered. Also, they should ensure
independence at work thus not receive bribes to eliminate some information that may
convict the perpetrator (O’Neill & Milne, 2014).
 A good investigator should be genuine. This is an important aspect most especially for
the private investigator, so that they can be able to acquire all material information
needed for the case.
 A good investigator need to be trustworthy. Thus, their clients can have confidence in
them to pursuing the case without back arrangements with the perpetrators. Thus, they
do not sabotage the investigation or compromise justice (O’Neill & Milne, 2014).
 A good investigator need to be friendly. A friendly investigator is able to create a
rapport with the victim and the witnesses. Thus, they are able to acquire as much
information as possible.


From the analysis it is clear that preliminary investigations are an important facet to
progressing with a case. Thus, it should be well done to confide a crime. It lays bases for post
investigations and success of a case. Thus, the investigator should have high level of
integrity, should be friendly, independent, trustworthy, and genuine. The investigator should
follow the guideless of preliminary investigation to ensure all material facts and evidence is

collected and preserved. Also, they should ensure they determine a case, since cases differ in
their nature of reporting.


Anuszkiewicz, J. E. (2004). The Integration of Global Positioning Systems into Law

Borum, R. (1996). Improving the clinical practice of violence risk assessment: Technology,
guidelines, and training. American Psychologist, 51(9), 945.

O’Neill, M., & Milne, B. (2014). Success within criminal investigations: Is communication
still a key component?. In Investigative interviewing (pp. 123-146). Springer, New York, NY.

Panner, M. (2012). Law Enforcement Intelligence in a Free Society: a Review of the
“Attorney General’s Guidelines on General Crimes, Racketeering Enterprise and Domestic
Security/Terrorism Investigations”.

Turvey, B. E. (2014). Criminal profiling. The Encyclopedia of Clinical Psychology, 1-6.