No country, state or region is free from crime. One of the main factors behind crimes is money. In the modern world, money is the most important thing in life. Some of the people think that they can earn easy money by cheating or by force, these types of sentiments lead to criminal activities. Domestic violence is another cause of crime. Hundreds of cases of domestic violence leading to murders are registered every day. Sometimes, these types of crimes occur due to the abnormality of the human mind. This factor is most feared by criminal investigators because this often leads to serial killing. Apart from the above mentioned factors there can be thousands other factors that can lead to criminal activities.
The occurrence of criminal activities can not be stopped completely but we can check the criminal activities. To check the occurrence of criminal activities every country has it own legal system. Generally in this legal system the court is at the top, and then comes the crime investigation agencies and then the law enforcement officials. To bring justice, every country has investigation officials who investigate the crime and determine who the culprit is. With the advance in technology, most of the investigation agencies use advance technology to facilitate their investigations like DNA testing.
One of the most famous crime investigation agencies of the world is the FBI. It has the most advanced forensic laboratory in the entire world. Before the beginning of the era of globalization, criminals used to commit crimes in one country and then flee to any one of the other countries to escape from the law. To stop this and bring the criminals to justice, Interpol was created. Almost every country is a member of the Interpol. If a criminal commits a crime in one country and escapes to another then that country issues an alert to the Interpol and gives the identification of that criminal. The Interpol then gives the identification of the criminal to all of its member countries, thus the criminal can not escape from the law in any way.
The main duty of the investigation officials is to gather the evidence against the criminals. They can not give punishment to the criminals. The judge in the court decides whether the man or woman is guilty or not. In the court room, one lawyer defends the person charged with the criminal offence and another one tries to prove that the person is guilty.
Sometimes, it may so happen that there is not too much evidence to prove that the criminal is guilty of the charge. If a lawyer is experienced enough, he or she can work with even the most minimal evidence and yet bring the criminal to justice successfully. So, experience and good presence of mind is vital for a lawyer. These days, there are many excellent law firms all over the world that excel in criminal cases. These firms have highly experienced and efficient lawyers who fight hard to win your case.