Detectives are another member of the police force who would attend the crime scene, the detective has a higher rank than the police that would be at the scene such as the FAO. A detective will arrive at the scene of the crime if needed they will be sent out by the telephone advisor who answered the call to the victim or witness who phoned up. This means that more superior officers would show up as well as specialist units if they are required. The detective is part of the preliminary investigation, these follow up the investigation as well.
As a lead detective at a crime scene it will be their responsibility to take control of other officers at the scene and to determine whether any sketched, photograph or videos need to be taken of the crime scene. The role of a detective at a crime scene is to analyse a crime scene and collect any evidence that is useful towards the investigation. This evidence, once bagged and tagged, is entered in to the chain of custody where it can be sent off to the forensic laboratories to be examined. Another role of the detective is to make sure that all roles and responsibilities have been carried out by the FAO and other officers at the scene. Therefore the detective should make sure that the common approach path has been set up at the scene to prevent anyone from contaminating the scene and to preserve evidence. The detective should also make sure that the crime scene has been corned of so that the scene is preserved in order to prevent any cross contamination. Depending on whether the investigation in to the crime scene is persuade any further, if so the detective who was present at the crime scene may have to attend court in order to present to the court as an expert witness from the investigation. Detectives visually asses the scene to attempt to figure out what actually occurred, they are also part of identifying evidence which should be examined, they also ensure there is no one present at the crime scene that shouldn't be. After the FAO has secured the scene the detective will also ensure this is done correctly, this can include the radius of the area and whether its sufficient or not if too small they are able to expand. The detective also supervises the scene of crime officers, this includes evidence collection and storing to ensure no contamination occurs.
As a lead detective at a crime scene it will be their responsibility to take control of other officers at the scene and to determine whether any sketched, photograph or videos need to be taken of the crime scene. The role of a detective at a crime scene is to analyse a crime scene and collect any evidence that is useful towards the investigation. This evidence, once bagged and tagged, is entered in to the chain of custody where it can be sent off to the forensic laboratories to be examined. Another role of the detective is to make sure that all roles and responsibilities have been carried out by the FAO and other officers at the scene. Therefore the detective should make sure that the common approach path has been set up at the scene to prevent anyone from contaminating the scene and to preserve evidence. The detective should also make sure that the crime scene has been corned of so that the scene is preserved in order to prevent any cross contamination. Depending on whether the investigation in to the crime scene is persuade any further, if so the detective who was present at the crime scene may have to attend court in order to present to the court as an expert witness from the investigation. Detectives visually asses the scene to attempt to figure out what actually occurred, they are also part of identifying evidence which should be examined, they also ensure there is no one present at the crime scene that shouldn't be. After the FAO has secured the scene the detective will also ensure this is done correctly, this can include the radius of the area and whether its sufficient or not if too small they are able to expand. The detective also supervises the scene of crime officers, this includes evidence collection and storing to ensure no contamination occurs.
In the case of Christine Jessop there were multiple detectives involved in the case however only two of the detectives have been named these are Bernie Fitzpatrick and John Shephard, the others are believed to not be names due to the fact they targeted Guy Paul Morin. The detectives in this case didn't correctly perform their duties as detectives as evidence found in the boot of Morin's car was not correctly packaged and was left in the patrol car over the weekend. The detectives Fitzpatrick and Shephard are believed to have told the parents of Christine (Ken and Janet Morin) to change their statements so that the times meant that Morin had a chance to perform the act.
A detective will usually only attend a crime once they have been requested by the police, this usually doesn't occur in minor crimes. The police have to asses the crime and whether detectives should be involved, if the detectives do get involved they are usually the most senior member at the crime scene and will take over the investigation.
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