Criminal Investigation Procedure and Principles

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Hp50
Contents
Introduction.................................................................................................................... 1
Case Analysis................................................................................................................. 2
Investigation procedure..................................................................................................... 3
Principles of the Investigation............................................................................................. 5
Legislation..................................................................................................................... 6
Guidelines..................................................................................................................... 7
Conclusion..................................................................................................................... 8
Reference...................................................................................................................... 8

Introduction
The procedure of the criminal investigation is commonly defined as similar to obey a jigsaw
puzzle and the information of the crime contributes in beginning to the investigation of any
crime. It is the duty of the investigating officer to reach the crime spot and collect evidence
related to the crime scene. Provisions related to the investigation of a criminal offence are stated
in the Criminal Procedure and Investigation Act, 1996. Investigation of any criminal offence is
conducted by the duty charged police officer Neill, (2018).
If there is no police officer present at the place of crime, in that case, a person who is not charged
with any duty or not a police officer can conduct the investigation of the offence, the provision
related to the investigation by the person other than police officer is also mention in the
Criminal Procedure and Investigation Act, 1996. At the time of the investigation of a criminal
offence, it is the duty of the investigating officer to find out who is guilty of the offence and the
charged the person who is guilty of an offence and collect evidence in the support of their report
which is made during the investigation of the offence.
When any police officer involved in the conduct of the investigation of criminal offence, he
becomes the investigator of that criminal investigation. Duty and power of the police officer or
investigator are stated by the legislation and it is the responsibility of all investigating officer that
they must obey their duty which was imposed on them while conducting the investigation with
all due care and make a record or report of information related or relevant for the investigation of
the offence.
The duty of the investigating officer, in charge officer of the investigation and the discovery
officer are unconnected. It depends on the density of the case that at the time of the investigation
the officers of the investigation undertaken by two or more person or not. Two or more deputy
disclosure officer can be appointed in the criminal investigation for the assistance of the
disclosure officer. The provisions related to the publication of a code of practice, recording of the
investigation or other relevant material or reveal the relevant materials which were obtained in

the criminal investigation conducted by such investigating officers are mentioned under Part 2 of
the Criminal Procedure and Investigations Act 1996.
It is the duty of the investigating officer that they must record information if the material consists
of relevant information related to the case and the recorded information must be in a retrievable
and durable form. If it is not practicable to recollect the preliminary record of information, in that
case, the content of the recorded information must be transferred in a durable form. It is the duty
of the investigator that they must retain the relevant material which is obtained in a criminal
investigation which can be photographed, recorded-videos’ etc. If any relevant material is related
to the investigation retained by the police officer in the exercise of the power of seizure
conversed under section 22 of the Criminal Evidence Act, 1984. The all retained materials
must be retained until the court declares the decision of the instituted proceedings Orr, (2015).
Case Analysis
 The police officer gets to know that a body is discovered in West London On 12th
February at 06.55 hours by a man who was walking with his dog at the place where the
offence has occurred. This information gives a start to the investigation of the case.
 PC WATSON was the first officer who approached the crime scene at 7.10 hours.
 The Investigating officer PC WATSON went to the place of crime and he analyzes that
the case is related to the homicide. In the cases of homicide, it is important that the
medical officer attends the body so that it can become easy in collecting evidence for the
police or any other investigating officer.
 Paramedics arrive at the crime scene at 07.10 hours. When emergency medical officers
attend the body they declare that the man is dead.
 Investigators face exceptional challenges during the investigation of homicide cases
because homicide is a heinous crime and conveying justice to the victim and bringing
offender and his/her punishment is urgency for the law enforcement agency and the
community.
 Several people gathered at the place crime, for collecting the evidence related to the
offence it is important that investigating officer asks a question to the person who is
present at that place. Investigation officer Mr Watson asked a young boy that how he gets

to know about the crime, he said he saw something happening so he would come to find
out that what is actually going on. The statement of the boy can become evidence if he
saw something which is relevant for the investigation of the crime.
 After that, it becomes a duty of the investigating officer to collect the information of the
incident or crime. They have the power to search the place of the crime scene and the
body of the victim. When the investigating officer PC Evans and Quinn searches the
body of the male they get to know that he was Mr Andrew Phillips.
 And after contacting to the control room they find out the address of Mr Phillips also the
investigation officer find out that Mr Phillips was involved in several domestic incidents
and to get some more information the officers went to the address of Mr Phillips.
 Therefore the investigation officer Evans and Quinn visits the address of Mr Phillips at
75 Little Ealing Lane, Ealing, West London and there they find a male and female, both
were intoxicated and have bruises on their body. Same bruises were present on the body
of Mr Phillips which gives circumstantial evidence to the investigating officer that there
two matter are interconnected with each other.
 Brown, a male who was found at the address of Mr Phillips has mud and dirty patches on
his clothes are asked the reason of the patches of mud on his clothes by the investigation
officer Evans and Quinn. But he refuses to give any response of the investigation officer
Evans and Quinn question. It can be relevant evidence that he was at the home of Mr
Philips and influenced by the intoxication and he has no answer when investigating
officers asked him.
 Kevin Jones was the Senior Investigating Officer of the case and when he arrives at the
crime scene he was happy with the investigation of the Watson, Evans and Quinn.
 Consequently, the excessive compact of pressure is frequently relying on Senior
Investigating Officers to ascertain the offender as rapidly as conceivable.
Investigation procedure
The Primary goal of the investigation of death offence or any other offence is to found the reason
and manner of the death or another offence. The Death investigator officer commonly works
under the direction of the medical examiner or coroner who is the public official responsible for
the investigation of the unnatural death causes Fish et al. (2010).