While I'm here having a bit of free time, I'll explain to the people what's Vory V Zakone and their difference from other criminal structures in ex-USSR.

So, the group Vory V Zakone is more or less to have been made in the early thirties in the Siberian Gulags. Practically there is no trace who were the very first to create this group, but what is known that it was a group of criminals to hold together the traditions of Russia's criminals. They made a special code to which they had to follow. The main thing was to oppose the communist regime and not go by it, as they wanted the Vory V Zakone to work.

Here's the code(Vorovskoi Zakon):
First part, there's practically seven main laws to follow:
1) Represent and support the Vorovskoi ideology.
2) Do not contact or get in any cooperation with goverment organs.
3) Be honest between each other(meant between Vory V Zakone)
4) Recruit new members to the Vorovskoi mir, especially those who are young.
5) Not to be involved in any politics.
6) Organize discipline/order in prisons and create there the ruling of Vory V Zakone.
7) Obligatory knowledge how to play card games.

Then from these 7 laws, there goes out more laws:
1) Disagree to work with/for any goverment workers(prison guards/police/etc.)
2) Never give a testimony.
3) Never accept your own fault in a crime you've done.
4) Not to hold any funds or stock(stock market)
5) Not to have family(no wife, no children)
6) From time to time, you need to get in prison
7) Not to take weapons in your hands(meant to not accept the offer from Stalin to become soldiers)
8) Not work at all
9) Hold order in prison, as sort conflicts and not let a conflict to break out
10) Send received packages to isolators
11) Recruit every possible criminal, prisoner as new recruits in the prison
12) Respect your parents(especially mother)
13) Not to be a member of some political party
14) Teach the new trade the right way of the life
15) Not to have signed at a living place(means you don't have an actual living place)
16) A card game always must be honestly played without cheating
17) Not allowed to swear
18) Not allowed to revenge in a sneaky way
19) Not to rob from your own people
20) Not to harm/laugh at other men
And then there's the other laws, that directly are meant to work in the prison:
1) Give a piece of your income(packages you receive/food/money) in the obshak(fund handler)
2) Not to raise your hand at a Vor V Zakone
3) Listen to/respect elders
4) Not to become a communist
Plus there goes other laws from previous sections mentioned.

A vor v zakone is a man who has sat in prison for a crime that is not(rape/pedophilia/killing of child) and has been crowned as a Vor V Zakone by another Vor V Zakone. They usually take leadership positions in organized crime groups, a lot of them are not even after that connected to organized crime. Their main task is to support criminals in the Russian prison system.