Blimey what a load of scare mongering!! I live in London, travel out of Victoria a lot on the way back to sussex. Have carried SAK on countless times and never thought twice. A mora wouldn't bother me at all nor would some meths. I have seen knife checks around London, they are rare though. Even if you were stopped you have a valid reason for carrying them and that would be the end of it.
The police are not looking to catch someone on their way through London off camping. Honestly, you have nothing to worry about.
The police are not looking to catch someone on their way through London off camping. Honestly, you have nothing to worry about.