Witness Statement within the Criminal Case Essay

Introduction: Background data

From the data acquired from Stefano on 20th December 2017, I understated that:

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  • Victoria Timotei was discovered shot lifeless on the 14th February 2016 at roughly 11 am within the street main up from Deighton practice station.
  • As has been caught on the CCTV, a suspect is male.
  • With no eyewitnesses.
  • It emerged that she was at a restaurant together with her work colleague, Suserio Pectrova, on the identical evening of her dying.
  • Suserio Pectrova acknowledged that he was on a date together with her in Leeds and so they have been on good phrases, however she left at 10pm.
  • By viewing the CCTV and the assertion of the employees on the Leeds restaurant, it might be seen that Mr Pectrova and Ms Victoria Timotei have been having an argument after Mr Pectrova had proposed to Ms Victoria Timotei, however she had rejected it.
  • Ms Victoria Timotei’s colleagues stated that Mr Pectrova was stalking Ms Victoria Timotei.
  • Mr. Pectrova denied murdering Ms. Victoria, and he acknowledged that they have been in a sexual relationship.
  • No ring was present in Ms. Victoria’s possession.

From the extra data acquired from Esta on 11th January 2018, I perceive that:

  • Mr Pectrova stated that the final time he had sexual relation with Ms Victoria may have been per week earlier than she was lifeless.

Author’s examination, interpretation, and conclusion are primarily based on the data acquired

Purpose

I’ve requested to overview sure forensic proof, that has been examined by different assistants, and to guage the potential for additional testing in relation to addressing the next points:

  1. Does Mr Pectrova have Ms Timotei’s blood on his clothes?
  2. Is there Mr Pectrova’s DNA below her fingernails?
  3. Is Mr Pectrova’s semen current on her intimate swabs (with the intention to decide whether or not they had a sexual relationship)?
  4. Are there any firearm discharge residues on Mr Pectrova’s clothes and hand swabs?

I’ve been supplied with the FSS examination notes/statements from various consultants and objects as listed within the appendix to this assertion.

Received objects

All the objects have been resaved on the laboratory on 20th February 2017.

Items recovered from Ms Victoria Timotei

Item quantity Item
FP/01 Fingernail scraping
FP/02 High vaginal swabs
FP/03 Low vaginal swabs
FP/04 External vaginal swabs
FP/05 Internal anal swabs
FP/06 External anal swabs
FP/07 Mouth swab

Items recovered from Mr Suserio Pectrova

Item quantity Item
PO/1 Long coat
PO/2 Hand swabs
PO/3 Trousers

Reference DNA samples

Item quantity Item
FP/001 Victoria Timotei’s deep muscle tissue
PO/001 Suserio Pectrova’s buccal swab

I acquired the copies of paperwork associated to this case. All the paperwork I’ve learn are offered within the appendix to this assertion.

Use of assistants

In enterprise the work on this case, I used to be assisted by PC Duncan, Dr D Donnelly, and A McPartlin [SOCO]. I took their contributions into consideration once I was engaged on this assertion. The involvement of different employees is recorded in case notes, out there for inspection on the laboratory if required.

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I’ve interpreted the outcomes of those examinations and referred to data within the case file to help within the preparation of this assertion. A full file of the work undertaken on this case is offered within the case notes made on the time of the examination, and these can be found for inspection on the laboratory if crucial.

Technical points

DNA profiling

On a bodily contacted space, DNA may be discovered, which is exclusive to people. In this case, DNA may be obtained from physique fluids akin to blood and semen, in addition to pores and skin cells, from the Fingernail Scraping. Therefore, these DNA samples have been analysed to supply DNA profiles, which have been then in contrast with the profiles obtained from the people within the case to determine if there’s a match. If the DNA profile matched with that of the people, the people may contribute to the pattern examined. If the DNA profile didn’t match with that of the people, definitely, the people couldn’t contribute to the pattern examined.

Test for firearm discharge residues

The firearm discharge residues encompass chemical supplies that may be analyzed by scanning the pattern below an electron microscope that identifies the presence of the chemical supplies.

Chemical check for blood

Blood check reagents are used to point the presence of blood by reacting with a element of blood. If blood is introduced, the color change happens. Therefore, if a stain seems like blood and the color change takes place, the stain may be recognized as blood.

Chemical check for semen

Reagents are used to point the presence of semen by reacting with a chemical element of semen. The affirmation may be performed by visible identification of sperm cells below the microscope.

Examination and Results

Results of the examination reported by the forensic science service (FSS)

FSS examination in relation to reference DNA samples from Mr Pectrova (P0/001) and Ms Timotei (FP/001)

DNA of Ms Victoria Timotei was sampled by Dr D Donnelly from the deep muscle tissue for DNA profiling check that was established as a reference DNA pattern (FP/001).

DNA of Ms Pectrova was sampled by PC Duncan by buccal swab for DNA profiling check that was established as a reference DNA pattern (PO/001).

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DNA references from Ms Victoria Timotei and Ms Pectrova have been obtained, and so they have been totally different from one another.

FSS examination in relation to Mr Pectrova’s clothes (PO/1) and hand swabs (PO/2)

PO/1 – Long coat

In the assertion of PC Duncan dated 15th February 2016, he reported {that a} single speech of firearm discharge residues discovered on the fitting sleeve of the lengthy coat. Also, some blood was detected on the left chest pocket of the coat. The blood was additional examined by DNA profiling and was discovered to match Ms Timotei reference DNA pattern (FP/001). In my opinion, the blood recovered from the coat may have come from Ms Timotei. As estimated, the likelihood of acquiring an identical DNA profile, if the DNA didn’t come from Ms Timotei, is within the order of 1 in a billion. Therefore, if the DNA didn’t come from Ms Timotei, the DNA profile may match by probability.

PO/2 – Hand swabs

Hand swabs had been taken from Mr Pectrova by SOCO A McPartline, who reported that the firearm discharge residues have been current on swabs.

FSS examination in relation to Ms Timotei’s intimate swabs (FP/02, FP/03, FP/04, FP/05 and FP/6), mouth swab (FP/07) and fingernail scrapings (FP/01)

All the objects have been examined by Dr D Donnelly.

FP/01- fingernail scrapings

The DNA profiling from the DNA discovered below Ms Timotei’s fingernail (FP/01) was discovered to match that of Ms Timotei’ DNA reference pattern (FP/001).

FP/02 – excessive vaginal swabs and FP/03 – low vaginal swabs

Semen present in high and low vaginal swabs was designated as UNKNOWN 1. As the DNA profiling of the semen didn’t match the reference DNA samples of Mr Pectrova (PO/001). Therefore, the semen recovered from swabs couldn’t come from Mr Pectrova.

FP/04 – exterior vaginal swabs

From the exterior vaginal swabs, a combination of two males was discovered, and the reference DNA samples for Ms Timotei (FP/001) and Mr Pectrova (PO/001) didn’t contribute. However, UNKNOWN 1 contributed and the opposite pattern designated as UNKNOWN 2. Therefore, the semen recovered from swabs couldn’t come from Mr Pectrova.

FP/05 – inner anal swabs and FP/06 – exterior anal swabs

The DNA profiling from the semen that was present in inner anal swabs matched UNKNOWN 2. From the exterior anal swabs, a combination of two males was discovered because the reference DNA samples, however Ms Timotei (FP/001) and Mr Pectrova (PO/001) didn’t contribute. UNKNOWN 1 contributed and the opposite pattern designated as UNKNOWN 2. Therefore, the semen recovered from swabs couldn’t come from Mr Pectrova.

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FP/07 – mouth swab

Semen discovered within the mouth swab didn’t match reference DNA samples for Mr Pectrova (PO/001), UNKNOWN1 and UNKNOWN 2. So, it designated as UNKNOWN 3. Therefore, the semen recovered from swabs couldn’t come from Mr Pectrova.

Interpretation

In conducting the forensic technique, I got down to deal with the next hypotheses:

H0 (prosecution proposition) – on 14th February 2016 at roughly 11 am, Victoria Timotei was shot lifeless, and Mr Pectrova was concerned in firearm discharge and forceful contact with Victoria Timoti.

H1 (Defence various) – Mr Pectrova was not concerned in Ms Timotei’s homicide, as he was on good phrases together with her, and so they had a sexual relationship.

If the primary proposition was true, I might have excessive expectation of discovering firearm discharge residues coming from Suserio Pectrova clothes or hand swab, Victoria Timotei’s blood on Suserio Pectrova, and Suserio Pectrova’s DNA below Victoria Timotei’s nails.

If the second proposition was true, I might have excessive expectation of discovering no firearm discharge residues coming from Suserio Pectrova clothes or hand swab, no Victoria Timotei’s blood on Suserio Pectrova, Suserio Pectrova’s semen in Victoria Timotei, and no Suserio Pectrova’s DNA below Victoria Timotei’s nails.

Did Mr Pectrova have Ms Timotei’s blood on his clothes?

Regarding PC Duncan assertion of Mr Pectrova clothes, the blood examined from his left chest pocket of the coat (PO/1) matched the DNA reference pattern of Ms Timotei’s. Therefore, it assists in figuring out whether or not Mr Pectrova was concerned in Ms Timotei’s dying.

Is Mr Pectrova’s DNA below Ms Timotei’ finger nails?

No, because the DNA discovered below fingernails was discovered to match that of Ms Timotei DNA. Therefore, this doesn’t contribute to figuring out whether or not Mr Pectrova’s or some other suspect have been concerned in a struggle with Ms Timotei.

Did Mr Pectrova’s have any sexual contact with Ms Timotei?

According to scientific findings, no sexual relationship was between Mr Pectrova and Ms Timotei. Regarding the FFS examination of Ms Timotei’s intimate swabs, all of the semen samples recognized from excessive vaginal swabs, low vaginal swabs, exterior vaginal swabs, inner anal swabs, exterior anal swabs, and mouth swab didn’t match Mr Pectrova’s DNA. As for sexual relations, from the outcomes of the FFS examination of Ms Timotei’s intimate swabs, three totally different semen samples have been discovered that prompt that Ms Timotei was in sexual relationships with three unknown males. Therefore, this data assists in figuring out that the Mr Pectrova’s was not within the sexual relationship with Ms Timotei.

Did Mr Pectrova’s clothes and hand swabs have any firearm discharge residues?

GSR was discovered to be current within the hand swab and on the fitting sleeve of Mr Pectrova’s lengthy coat. Consequently, the findings point out that these two objects have been involved with the sources of GSR.

Given the above outcomes and findings, I’ll think about the proof within the context of the hypotheses offered above.

I perceive that the outcomes of the evaluation of the lengthy coat (PO/1) and the hand swabs (PO/2) taken from Mr Pectrova that include GSRs and Ms Timotei’s blood can be utilized to find out that Mr Pectrova was concerned in Ms Timotei’s dying. However, this discovering helps the prosecution proposition.

The DNA acquired from Ms Timotei’s fingernail scraping was discovered to not match the DNA profiling pattern of Mr Pectrova. This proof was addressed within the Defence various proposition. Therefore, Mr Pectrova didn’t come into forceful contact with Ms Timotei.

Regarding the sexual relationship that Mr Pectrova talked about in his witness assertion, the outcomes confirmed the alternative. As the examination results of Ms Timotei’s intimate swabs illustrated, Mr Pectrova was not in a sexual relationship with Ms Timotei, however different three unknown males have been in sexual relationships together with her. This data helps the prosecution proposition.

Conclusions

In my opinion, the findings present:

  1. Strong assist of the view that Suserio Pectrova was concerned in firearm discharge.
  2. No assist that Suserio Pectrova was in a sexual relationship with Ms Timotei.
  3. No assist that Mr Pectrova didn’t come into forceful contact with Ms Timotei.

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