How can I identify a skilled professional candidate in an interview?

I doubt the answer about using terminology and fluently speaking. I have seen tenths of candidates, mostly English native speakers, who are able to sell a bee-keeper honey. But showed after a couple of months in contacts with real experts to be al least 'fake' or less expert than they have proposed to be. The problem is, that some experts are not always English native speakers. I give an example: 'recycling' is the recovery of materials out of waste. The recycling rate in the Netherlands is.5% Or better,1.5% goes to landfill as 'unrecyclable" waste. The UK has % of landfill, one of the lowest recycling rates in the EU. Still, UK experts present themselves as 'experts' in recycling and get mostly the jobs overseas, where they lack clearly the experience, knowledge and background. But convince the interviewer by fluent English, using terminology not familiar for the interviewer and impressing on a huge scale. Is this answer clear enough?

Try not to offer too much detailed information up front so that the candidate will be able to formulate answers that exactly fits your company's needs. Don't put the right words in his/her mouth! ..Ask questions that focus on the candidate's past performances,Ask specific, structured questions in regards to specific problems that the job holder may face. Etc .

Nothing guarantees your selection. That is why people development is a subject for all Organisations not to ignore. However, there is a technical procedures for selection as follow: First you decide about the most important criteria that you need for the candidate for example experience, age, skills, personality ....etc Second you weight these criteria based on importance for example if you are interested more with experience you would weight the criterion as% then age as% ....etc Third during interview rate the candidates against each criterion for example if you prefer young individual then you would rate those below as9 points over ten and so on Forth multiply the points of each criterion by its weight of importance Fifth the sum will show you the best To avoid bias more than one should perform the interview using the same questions Good luck

Theoretical knowledge can be assessed through an interview. Monitoring the response to the real life scenario  is the best way of assessing the skills.

Explanation on real time examples of handling the situation can be good tool to know in depth of the candidate. It can be observed by asking more specific technical ir management domain questions and very specific roles or contribution of the candidate in that particular situation.

A skilled professional is known by his terminology used Ind answering questions and the fluency in speaking with the interviewer

simple ask technical and application based questions.ask those questions which a professional can only answer or aware off

It's not easy to identify a skilled person in one interview, as you know there are a lot off tricks showing the job requester how to present himself for a job interview. I think a skilled person is identified in work or recommended by someone you trust.  

To identify a potential candidate these things is required to be noted:

1) Confidence: Let the candidate speak and assess the confidence while Communicating

2) Personality: Asking the candidate to frame a Case Study from the Industry and Position She/He is, whereby She/He can represent the real time situation and possible outcomes/solution - this will help to assess a candidate in Degree View i.e IQ & EQ.

3) Skill: A skill is developed with hands experience on the said task, let the candidate express where and how She/he has utilized the same for Organisational Effectiveness

I think from his confidence, knowledge of job and the body language. 

1.Ask Questions on Process oriented from Starting to end, Prerequisites,Inter related issues,how it will deal etc..

2.Situation/Problem based questions.

3.Personal related questions and his growth during the career..

4.Finally Career references if any..

5.Then Judge the facts and decide with related info..