After studying political science, can it be use for Masters in Law and go to Law school after Masters ?

You have to study law as a 2nd degree. An MSc in law cannot get you to law school.You have to spend another 4-5 Years studying it excluding 1year in law school.

My cousin broda try doing that but didn't work, he have to start frm d scratch, now he is a barrister he too study political science at ABu.

Actually, the arrangement is wrong My Dear,-saying Doing masters first then opting for Law School.
The Thing is A Masters program helps you restrict your interest to a SPECIALIZATION (*Pls take note). As against Law School which is Broader i.e Since The Nigerian Law school is of Two(2) parts---BAR I -For. "Foreign Student" or those who havn't done the elementary Course in a Nigerian University(Contract,Nig. Legal System,Land Law,Company Law et.al) and the Bar II-Comprising 5 courses at present-Company Law (This time much broader),Conveyancing and Legal Drafting, Criminal Litigation,Civil Litigation and Ethics.
Consequently, in your cause for a Legal Education All this are the Variables which come to play Viz a Viz Using a Degree in Political Science. Hence Your would need to Study under a University to get a Degree in law. The Good News here is that, you would start from 200Level in any Nigerian University. Then 1 Year Law School Programme. After which going for a Masters in Law would be more apt.

ALIEN2000:
Actually, the arrangement is wrong My Dear,-saying Doing masters first then opting for Law School.
The Thing is A Masters program helps you restrict your interest to a SPECIALIZATION (*Pls take note). As against Law School which is Broader i.e Since The Nigerian Law school is of Two(2) parts---BAR I -For. "Foreign Student" or those who havn't done the elementary Course in a Nigerian University(Contract,Nig. Legal System,Land Law,Company Law et.al) and the Bar II-Comprising 5 courses at present-Company Law (This time much broader),Conveyancing and Legal Drafting, Criminal Litigation,Civil Litigation and Ethics.
Consequently, in your cause for a Legal Education All this are the Variables which come to play Viz a Viz Using a Degree in Political Science. Hence Your would need to Study under a University to get a Degree in law. The Good News here is that, you would start from 200Level in any Nigerian University. Then 1 Year Law School Programme. After which going for a Masters in Law would be more apt.

Thanks bro

@ALIEN2000... thanks, you just gave me an eye opener [color=#770077][/color]

Please I just want to know,I initially applied for law in school but my post utme score wasn't enough and I was given political science to study but I really want to study law so I was thinking,can I study the political science and maybe just switch back to law