Will learners be able to take this tool away and complete it (and submit it?) outside of a classroom setting (either on paper or online)?
The mental health tools (PHQ9, GAD7 and SWEMWBS) should be completed when learners have access to a member of staff to help them with any queries. They can be completed over the phone, on paper or on-line. If someone indicates they are at risk then you need to talk to them about it. That might not happen if completed at home.
You do not need a tutor to give the form to a learner - it can be a volunteer or other team member.
If someone shares something (not just on the PHQ9 scale) that indicates they are at risk of suicide you shoudl not leave it, but remember you cannot simply 'refer' someone. You can recommend that someone goes to and you can offer to help them do so/refer them but you cannot force them/make it a condition of your provision unless you have asked them to sign to that effect as part of your safeguarding procedures. If someone discloses something that is a safeguarding issue then you will have to follow your safeguarding procedures but be careful that you are sensitive to the context and what they are saying.
The learner survey can be completed either on location or at home - this will be at pilots' discretion. However, it is crucial that the initial survey is completed before or at the very beginning of the course so that it can act as a baseline assessment. The evaluation team suggest that paper forms be completed on site to avoid them being misplaced or forgotten at home (and therefore not returned to the evaluation team), but that the online version of the survey can be completed at home as an alternative if learners or pilots prefer this.