Applying for an Alcohol Permit
Alcohol permits are administered by the Qatar Distribution Company and application forms can be obtained at their shop. A permit must be shown to enter the shop. A letter, written in English, is needed to apply for an alcohol permit. If the letter is written in Arabic it is usually accepted if it is accompanied by a stamped translation. The letter must be addressed to the Qatar Distribution Company, be stamped and signed by an authorised person within the company, and include the following information:

The applicant's position within their company
The applicant's basic salary. The word 'basic' must be used. To get a permit a minimum salary is needed (4,000 riyals or 1,100 US dollars)
Whether the applicant receives an accommodation entitlement or has free accommodation
Whether the applicant is married
When applying for a permit an individual must fill in an application form, pay a returnable deposit and state their religion
The following additional documents are also required:

A passport, or equivalent identification (a photocopy is acceptable)
A residence permit (a photocopy is acceptable)

http://qatar.angloinfo.com/lifestyle/food-and-drink/liquor-licence/