What are the investigation methods of robbery cases?

1, (2) investigation ways of highway robbery cases

1, pursue and intercept. After committing a crime, if the suspect can escape successfully, the investigator should pursue him and try to catch the suspect in time. This is pursuit. When chasing a suspect, investigators should set up checkpoints on the road where the suspect may pass to prevent the suspect from escaping further. This is interception. These two investigation measures are inseparable and are mainly used to arrest criminal suspects. There are many ways to hunt down suspects. For example, chasing suspects by one-way tailing can keep abreast of the suspect's dynamics, which is of great help to the support department in understanding the interception position and greatly improves the probability of arresting suspects. There is also a double-line response method, which is to pursue and intercept at different positions on two different routes to prevent the suspect from suddenly changing his escape strategy and changing his escape route. The third is the multiple circuitous method, that is, when arresting suspects, we adopt a circuitous strategy and take various measures to pursue suspects in multiple ways, so that suspects can't find the law and escape route. The fourth is the follow-up method, so that we can learn more about the suspects or know where they are from through their accents, so that it is easier to analyze the motives of the suspects and solve the case.

Two, two, control the fence. The evidence of a criminal suspect's conviction is stolen goods or stolen money. Criminal suspects generally reduce the risk of being found by selling stolen goods, so investigators can find more clues by controlling the sale of stolen goods in time. The control of stolen goods can start from the following two aspects: first, severely punish the acquirer. In order to achieve the purpose of selling stolen goods, criminals will generally find some business offices without formal business licenses to sell stolen goods and make acquisitions through these acquirers without formal business licenses. Second, China's regulatory agencies are far from enough to control such units, which makes the acquisition units without business licenses exist. If the relevant departments of our country can strengthen the supervision of these three places and improve relevant policies and regulations, the road to selling stolen goods will be completely blocked.

3. Use the news media to mobilize the masses to provide clues. There are few investigators in charge of cases among the masses, and it is most difficult to catch cunning criminal suspects and find suspects who have escaped. Usually, the best way for investigators to get in touch with investigators in various regions is to release relevant information of the case through the news media and mobilize people familiar with the case to actively provide clues to the case. The power of the masses is infinite, and the masses will also ensure their own safety for their own interests, report the perpetrators and then arrest them. We should firmly believe that the role of the media is enormous, and we should make full use of the power of the media to combat and punish crimes.

4, 4, in-depth investigation found the suspect. For some robbery cases in expressway, because the suspects were not caught on the spot, in order to find the suspects, investigators need to investigate deeply. In-depth investigation includes the investigation of the means of committing crimes, the proficiency of the means, whether there are relevant surveillance videos at the crime scene, collecting surveillance videos and looking for clues to the case. Through these in-depth investigation clues, we can initially and simply understand the basic characteristics of criminal suspects, and then it is much more convenient to combine the work experience of investigators. For example, on April 4, 20 13, a news broadcast said, "Five foreigners in Shenyang stopped the road and robbed, first hitting customers to get money, and were arrested after committing seven crimes." This news is about a police station in Shenyang. After in-depth investigation, surveillance images were collected, crimes were committed, and the perpetrators were finally identified, and a group of highway robbery gangs were successfully arrested, which fully explained the importance of investigation.

5, 5, patrol waiting, grasp the current. Patrol waiting for recidivists is one of the important means to catch criminals. After knowing the modus operandi and crime area of suspects who habitually commit crimes in an area, investigators will focus on patrolling and waiting in this area, and then arrest the suspects in one fell swoop when committing crimes. This method has two advantages, one is that it can not startle the snake, and the other is that it can solve the case quickly. This is a robbery case with malicious threats, which is different from direct violent robbery. He used intimidation to get pedestrians to take out money. After receiving the report, the investigators conducted relevant investigations and found that the suspect had committed many robberies in the same area in the same way. After discovering this feature, the investigators focused on staying around the crime scene and captured it in the next crime.

6. In the new era, with the rapid development of science and technology, the informatization penetration rate has increased. The criminal intelligence quotient of criminal suspects is getting higher and higher, which leads to the challenge of traditional investigation methods of public security organs. This determines that to deal with the increasingly serious crime of highway robbery, we must be proactive and fast. The basic business of criminal investigation can only be strengthened but not weakened, so that the criminal investigation work can win the initiative and maintain the vigorous vitality of the basic business construction of criminal investigation. Society is a big collective family, so we should put an end to highway robbery, build a harmonious society from the society and put an end to highway robbery.