Since he came to power in 2000, Russian President Vladimir Putin has been the target of assassins dozens of times. He never goes on a trip without several mysterious briefcases, ex-intelligence officer Božidar Spasić explains to Blic.

One is a portable shield, the second contains means to neutralize attackers, and the third - the well-known"nuclear coffin" - enables the launch of nuclear weapons. They were also seen now in Beijing.

- It's a black and a red chest, there are two buttons. Because the red button in that coffin, if it is opened, can only be pressed by President Putin, and in that sense, the order to activate that atomic attack on the country, for which the missiles are already prepared, is issued. So, the entire headquarters, the entire command of President Putin was contained in one coffin and two specially equipped means provided by him - says Spasić.

Rooms, routes, exits and possibilities of unforeseen events are checked

Each leader's visit is planned months in advance states Darko Obradović from the Center for Strategic Analysis. Rooms, routes, exits and possibilities of unforeseen events are checked - from potential terrorist attacks to natural disasters. Even the spaces they stay in and the chairs they sit on are thoroughly cleaned to remove biological traces.

- For example, wiping up the sweat after fat Kim Jong Un is actually removing traces so as not to reveal if he is sick with something because often human sweat and hair and hair and so on give away some of our health habits and problems. That is the goal to prevent, to find out what medicines a person is taking, what they are suffering from and so on. Why is it important? Because, for example, if you know that the protected person wears a pacemaker, you can use electrical devices to cause a disturbance in the operation of that pacemaker during the movement of that person and actually kill that person with a direct hit - says Obradović.

Strictly defined procedures

When heads of state travel abroad, the host country must adhere to strictly defined procedures, explains Spasić. All security services share information, identify potential threats and create detailed risk maps. If the host does not meet these standards, the visit, he says, is simply not approved.

- Everything is planned, down to the last spoon, to the last fork, what will be eaten, who will try the dish first. Let's not talk about the fact that the public has seen the image that, for example, after visiting and sitting on certain chairs, all traces are cleaned, any remains that can be used for some purpose or misused are removed, or it is simply a practice to remove all traces of those whom the secret services protect - claims Spasić.

Hence the speculation about Putin's unusual suitcase - in which all his biological material is packed and returned to Russia. Every trace - from fingerprints to tiny hairs - is neutralized by the team of North Korean leader Kim Jong Un. Its famous green train also has a private toilet. Whether and how successful all these measures are, will only be known when someone puts them to the test, says Obradović.

- Because even the best security, if they have betrayal from within, a mole, bad staff, bad selection, bad counterintelligence protection, bodyguards can do very little work. The need absolutely exists, because these are the people who make a large number of decisions. Some decisions affect a large number of personal destinies. On the other hand, you have people who are mentally deranged, who think that they will satisfy some mission of theirs by assassinating them. You have terrorist organizations, you have interstate terrorism - Obradović points out.

Although the methods vary from country to country and from leader to leader, the goal is the same, intelligence officials conclude. Absolute control and security.