If you are a complete novice in the field of crime investigation, then you should be the one to read up a bit about the various procedures of the same before you step in to the department. This is because of the fact that if you are through with the procedures, then you can set an example as well as grab a lot of impression on the first day itself. Now let us check out the processes in which a crime is investigated on.
Do not rush for the criminal record check of the suspect right at the beginning. The first thing that is done is to check the whole of the crime scene for any possible clues that could serve as strong evidence. This is the first and the most vital steps. Though initially no clue can be deciphered, yet a double check on the place can make sure that you can grab at least a single element of evidence- no matter how trivial it is.
Once the checking of the place is complete, one has to keep a record of the people who stay in and around that area so that the suspect can be marked out of them by having each of their criminal record check.
Once the suspect(s) are marked, now is the time to think about their motive and the reason they committed the crime in the first place. Then again, there hasto be witnesses and the support of strong evidence to mark out the actual culprit of the lot. Well a lot goes on beneath the basics of investigation like the forensic tests, autopsy and so on.
You might be having the question as to why all the investigations are done in a very conventional pattern. Well the answer to it is that if these methods are followed in a specific order, then the investigation can be done in a neat and compact manner and the case can be solidified despite various adversities. Checking the criminal record of any individual is done to verify whether he or she had any criminal tendencies in the past as that helps to set up the case better. For example an individual with a greater number of criminal records will definitely be held as a prime suspect than the person with no such records, see this reliable credit check.
If you are lucky enough to be working in the crime management department, you of all people should be the one to follow these methods in an organized manner so that there are no loopholes for regret later on.
In a nutshell, all that can be said is that the above mentioned steps are the ones that should be followed whenever you are to arrive in some crime scene. After all, it is in the psychology of the criminal mind to leave behind even trivial evidence in deliberately.