[ WP ] Write the constitution for a small colony of post-apocolyptic survivors

This, I imagine, would be a somewhat large collection of people ( 1 thousand, perhaps ) and would be a walled off city. It's inhabitants and ideologies are collectively liberal. 
 
 Herein, these rights and regulations are pertinent to all subjects of the new colony. 
 
 I. All individuals within the colony, who possess the ability to do so, must fill some position which advances the colony and it's inhabitants in some fashion. Members who contribute nothing, or even take from the colony with no contribution, are intolerable and will be exiled for such negligence. 
 
 II. Any action that intentionally effects an individual or their property in a negative fashion, or in any way to which they have not consented to, is punishable by law. This includes but is not limited to murder, theft, vandalism, or distress of any kind. 
 
 III. There shall be no laws prohibiting the ownership, sale, transport, or use of certain substances which may harm an individual's health; so long as their use of said substance effects no one else, as per Clause II ( two ). These substances include, but are not limited to: marijuana, cocaine, heroine, amphetamines, etc. It is to be reasonably assumed, however, that these substances may inhibit one's ability to perform Clause I ( one ), and if this becomes the case, the individual will be not be waived from their obligation on grounds of inability to work, and shall be exiled. 
 
 IV. Male individuals of the colony, who are fit to do so, must be in active membership of the colony militia. This entails regular training and exercises to maintain the security of the colony. 
 
 V. All individuals within the colony have equal opportunity, and shall not be given special circumstances based on their color or ideologies. These'special circumstances' may include circumstances which are negative or positive for that individual. 
 
 VI. The representation of the colony will be as such: 
 
 a ) Per 250 residents, there shall be one representative. The colony shall be apportioned into districts for each representative on the Colonial Panel. These districts should be of reasonably equal population. The inhabitants of each district shall elect their representative annually, from a pool of individuals who seek office. These panel representatives represent the legislative branch of the colony, and make collective decisions regarding such. 
 
 b ) The executive branch of the colony is to be filled by the Colony Overseer, elected by the entirety of the colony's voting population every two years. This overseer can check the representatives, by vetoing their actions, or signing them into action. If the Overseer signs an action that originated from himself, the representatives must ratify such an action. 
 
 c ) Finally, the Colonial Court shall also check these two previous branches, along with it's administration of law. They may declare any action unconstitutional, with good reason. This judicial panel shall have 1 judge for every 300 people, and these judges are appointed by the Colony Overseer. The court will, along with checking the other two branches, serve as the high court of appeals for the colony; seeing cases from subsidiary courts which have been appealed successfully. The judges will deliberate on the cases constitutionally. 
 
 VII. Amendments to this document are voted on by colonial residents, and not representatives. Colonial residents must ratify a constitutional amendment by a three-fourths vote.
