to confirm, fixed blades are illegal for EDC in the UK without "legaly valid reason. you can own them, but not carry them without said reason.
as I understand it, more or less any knife (except autos an balisongs) can theoreticaly be carried, if you have the aforementioned "leagaly valid http://www.bladeforums.com/forums/images/smilies/cool.gifreason" the law as it applies in this case (i.e. public areas, as opposed to the other offence it covers, which is on school grounds) the reasons are: as part of a job (which is also, I believe held to include legitimate sport of hobby), religious grounds (shikism), and as part of national dress (so if you where wearing a kilt, you can carry a skean dugh). self defence is not a legaly valid reason, and if a knife, even when compying with the "non-locking sub 3inch folder" rule, is carried for self defence (and the officer has grounds to believe this) it becomes an offensive weapon.
glasgow? all that can be said about that is it's safer than london.
And that's not saying much! I have to say though - I was in Bromley On Bow (East London I think) and I felt much safer walking down the street than I have felt in some places here.
Thanks for all that info. I'll maybe have to make up some sort of hobby, like wood carving to back me up if I get searched.