cannabis in the 60s and 70s, 1%, 2%, you see frank says skunk is two to four times stronger than convas. wrong. the other you can hardly get it now, the other 20% is hash which is about 4% to 6%. with this huge strength, thc strength with skunk this is doing a lot more damage. the dutch have just banned any thc or 15% because they are now looking at skunk as a hard drug. we should be doing the same. >> that is extremely helpful. on the other points you wish to raise with us, if you could write to us. it will be extremely helpful. i'm afraid i'm going to have to call the session to a close because as i say we have other witnesses. but thank you very much for coming in, all three of you. we may well write to you again and please feel free to write to fee if you think the committee is going off in the wrong direction. we're very keen to know this because we want to make sure this is a very thorough inquiry and will go on for several months. >> thank you for asking. order. we now switch and we have the home secretary. >> this week, live from london, the ceremony and pa gentry of the state o