https://www.gov.uk/gover...ent-health-questions.pdf"Once the employer has decided that a job applicant
meets the requirements for work, the employer
might make the applicant a job offer, or place the
applicant in a pool of successful applicants to be
offered jobs as vacancies arise.
At this point, the employer is allowed to make
the offer conditional upon the successful
applicant meeting the employer’s health or other
requirements. The Act does not then prevent the
employer asking questions relating to health or
disability.The employer may, for example, need to
ask questions to determine whether a successful
applicant would be eligible for job-related benefits,
or would need reasonable adjustments to enable
them to do the job.
However, an employer must avoid making final job
award decisions that discriminate against disabled
people – see “Avoiding direct discrimination” section
below"
Of course, many applicants do not know about the law. So discrimination is rife. Asking them if they're in a union first before discriminating may alleviate any possible irksome court cases (except it is doubtful if even that question is legal)
Still, with more employee-discriminating anti-union legislation coming soon, and with the unions being able to [legally] only put milk out for the cat.........