Sorry for this copy past job:
Unlike most modern states, Britain does not have a codified constitution but an unwritten one formed of Acts of Parliament, court judgments and conventions. Professor Robert Blackburn explains this system, including Magna Carta's place within it, and asks whether the UK should now have a written constitution.
You know Magna Carta was written on a single piece of paper.
No need to over complicate things and have huge constitution like we have which on many occasions contradict itself due to many tinkering and all. Thing is, the guiding principles do not change with the passage of time. The foundations and principals , first state of Madina was build upon are valid till the day of judgement.
All we need is to have a brain storming session of Ullema from all sects in Pakistan, agree upon the set of these guiding principals which they understand about the first state of Madina according to their own teaching of sects and give a united sets of TODOs and leave those out which they dont agree upon. That will be our magna carta. Follow it in the letter and spirit without any softening or comprise.
How ignorant are you Sir. you know thing about constitution of Pakistan, you know nothing about Islam, you nothing about Mullanas. and abve all you no nothing about our socia-political history of Pakistani politics and that of Islamic world. how ignorant. go and read before you start selling ur own ignorance.
Our current constitution has lived its shelf life, it cannot take us any further.