Former Home Secretary Jacqui Smith has admitted the change in the legal status of cannabis she introduced caused "confusion".
The politician, who resigned from the cabinet in the wake of the expenses scandal and lost her seat in the 2010 election, upgraded the drug from class C to B - bringing in a tougher line against users and dealers.
She told the Radio Times: "I'm more sympathetic now to the argument that there are people who use cannabis without harm. I don't want tough messages being sent out by the law always translated into tough action against individuals."
"From the people I've talked to in this programme, I know that it (the reclassification) also caused confusion and dissent. Was that worth the positive impacts of the change in law that I introduced? I'm no longer sure it was".
Ms Smith was interviewed by the magazine ahead of a Radio 5 Live documentary on the issue which she is presenting next week.