You take a lot of care
But people still screw it up
If you are going to court, the person who served the documents will submit an affidavit of service where they set out who, how, when, and what was served. Like any fact before the court, the other party can contest it. If they do, then evidence on the matter is advanced, including testimony, and, because service is a matter of law, the judge decides what was served.
Speaking as an adjudicator, I have had several matters where service of the adjudication application on the respondent has been an issue. Since such service is necessary to engage my jurisdiction, if it didn’t happen, I can’t make a decision which means, in practice, the claimant gets nothing.
- The respondent raised that they had only received the odd-numbered pages of the 7-page government form - likely a result of photocopying a double-sided document single-sided. I was satisfied the respondent was right, so I had no jurisdiction.
- Supporting documents were provided only on a flash drive, not in hard copy, by email, or another method allowed by the contract. The respondent submitted a statement that they had never accessed the flash drive and so the full application had never been received. They were right: no jurisdiction.
- The respondent raised that the progress claim provided in the application was different from the one originally submitted. The claimant withdrew the application.
Of course, an adjudication is not a trial or an arbitration so these matters were decided on the papers without the ability to hear testimony and cross-examine witnesses, but the illustrate the errors that can be made. Further, a judge in a court or an arbitrator in an arbitration has a lot more discretion than an adjudicator to allow parties to remedy defects of service.