"Right-to-die" campaigner and multiple sclerosis sufferer Debbie Purdy welcomed the new guidelines on assisted suicide, saying they have "given me my life back".
But she vowed to continue campaigning for a change to the law, to give other people the same clarity she feels she now has herself.
Ms Purdy, from Bradford, has fought long and hard battle to find out whether her husband, Omar Puente, would be prosecuted for helping her to end her life. She now knows that if the Cuban jazz violinist is judged to have acted with compassion a prosecution will not be pursued.
"The important thing about the guidelines is they've been able to really clarify the difference between malicious encouragement and compassionate support for somebody's decision," she said.
"The current guidelines are enough to give me my life back and to know that I can carry on living and don't have to worry about making a decision now.
Now it's my turn to make sure I don't say 'OK I'm all right, end of story'. Now we need to make sure the protection is not just for those people who are loud and able to put their point of view across but also that there is clarification and protection in place for everybody else in the United Kingdom."
The new guidelines on assisting suicide will place closer scrutiny on the motivation of the suspect, the chief prosecutor in England and Wales said.
Director of Public Prosecutions Keir Starmer said each case would be judged on its merits and denied he had legalised assisted suicide or "opened the door to euthanasia".
The stricter, final version of the policy will also place less emphasis on the health of the victim - such as whether they are terminally ill.
It also makes clear that anyone assisting suicide who benefits from the death is unlikely to be prosecuted as long as compassion was the "driving force" behind their actions.