My $.02, or about Cdn$.03
Guess the questions to be asked depends highly upon what you want the employee to do. I have worked with climbers that were skilled, but came only with a saddle-no ropes, safety equipment,carabiners-ziip. Seems to me if you want to be taken seriously as a potential professional climber you would have the equipment to go along with the position. Personally I would not hire someone that does not have all his gear, but climbers are so scarce around here that you might have to. I can not see the sense in asking a potential ground guy to climb a tree, but that is exactly what my boss did with M who was being interviewed to be a climber; there is a big oak in the back yard and he was told to climb it. Ground guys, hummmmmm. Given that pay is at the lower end of the scale here, you are not going to always get the cream of the crop. I know when I was hired for the first time I made in impression when I said I did own a chainsaw, and had all my own safety equipment, which surprised my boss. As far as having experience dragging brush, no, not specifically, but my resume did indicate I had on many occasions gotten dirty, cold, sweaty etc. In fact V. had spoken to his father in law, a retired Infantry major to ask what some of the jobs and courses I had in the Forces I mentioned entailed. So I got the job. On the other hand, if you have the time and patience, someone who seems earnest, intelligent and interested in the trade might be worth the time and effort.....I speak from personal observation (twice), they will not last long if they do not like it-employee number one's Mummy phoned up to say we were working her darling (out of school/quit at 17, soft and somewhat naive) too hard after he was made to shovel chips for a few hours, and number two lasted less than two weeks as, at age 27, he still had not decided what to do, and found this line of work too hard as well (the first bad indicator I saw was Daddy drove him out to the initial interview, number two was he was still living at home). Dunno you just get a feel for when something is not right. As far as felons go, probaby not a good idea in a lot of cases, but call me soft, SOME people deserve a second chance.