In Denmark there is a growing demand from the clubs, that coaches on their schools for ball games must be checked for criminal records, in order that the children don't risk meeting a person who has been convicted for sexual abuse against children.

Some clubs are nervous for this arrangement as they are afraid, that a person, who has told the club, that he or she is willing to be a coach for a team will retreat, if he/she is told that the job can only be his/hers, if he/she can produce a clean criminal record regarding abuse of children. Some clubs also fear, that if they suddenly demand a criminal record from a. permanently employed coach the person will feel himself under suspicion: "I have never done anything wrong. Why does the club now want a record?"

But the consideration to the children ought to be more important. No one should have the possibility to be a trainer for kids 3 years after they have committed an offence against a child. Of course the control cannot cover the children against new offenders, but you can stop the person's, who has been convicted and prevent such persons to be a trainer for the youth. 

Therefore I can only say, that if you are a trainer or want to be one, then sign the agreement to be checked. You don't have to worry unless you have been convicted for the following offences (in Denmark anyway):

- You have had sex with children under 15 years.
- You have bought, sold or possessed pornographic material with children.
- You have had sex with your brother or your sister.
- You have affronted a child's decency.

If you say no to sign the papers, it can only give others the thought that there maybe is something to hide.

Convicts are normally deleted after a certain amount of years, but convictions of sexual abuse against children are for lifetime. It contains charges, withdrawing's and convictions inclusive acquittals. However the certificate does not contain information about other forms of crimes.  
Only the person or the persons, who are mentioned in the certificate of agreement may see the criminal record, which will be blank if no crime has been registered. They will be convicted themselves if they give out any information from the certificate.

You know what the police know about you, and if your conscience is clean then get the certificate and continue or become a trainer.