yeah,you MAY have a case if they will give you the info you asked for,if it clearly shows discrimination etc then im all for it,i hate being singled out for the car you drive or how you look (although to a certain extent we all do it)and especially the way that police can treat people and get away with it sometimes.ive been pulled over before for overtaking.......legally!i got a lecture telling me i would have been home if i hadnt have done it,but it was COMPLETELY legal and if anything the police were VERY dangerous in following me,unfortunately they didnt expect me to know my rights and carry all my documents, so they couldnt even issue a producer.
if youre in the right go for it,hope it works out.