If you are an ordinary person who wants to buy a gun legally, you have to:
1 Apply for a licence, or Por 3, at district offices with the necessary documents required.
2 After receiving the licence, or Por 3, you can buy a gun.
3 After buying a weapon, you have to get a licence, or Por 4, to possess and use it. While applying for Por 4, you need to submit Por 3 and the gun, and you must be an adult without any criminal record.
4 You are licensed to use the gun in selfdefence only after you get Por 4.
Carrying a gun:
If you want to carry a gun all over the country, you have to meet three criteria:
First, you have to own a gun and get Por 4 to possess and use it.
Second, you have to get another licence, or Por 12, to carry a gun. You will need Por 4 to apply for Por 12. You must meet all the required qualifications set by the Interior Ministry.
Third, you can carry a gun legally if the gun is necessary or suitable for a situation.
According to a Royal Thai Police memorandum, the police will not file charges against those who carry a gun if:
>> the gun is kept in a bag in the carboot or in a locked bag in the compartment where the gun cannot be immediately used.
>> you separate the bullets from the gun while travelling in the provinces.
>> you go to a province with a significant amount of money and carry a gun - with permission - to protect yourself and the assets.