Sorry, are you claiming to know what you're talking about? Because you aren't making sense. My legal knowledge isn't huge, but I'm afraid you don't know what you're talking about. Many witnesses (although I initially said character witnesses) are a 'friend/coworker/teammate' because these are most likely to be the people who are around their mates incident.
Funny enough that you are saying this to me, coz this is smack in the middle of my field. My profession is that of an attorney, mate.
As for your character witnesses, you are confused. Character witnesses are brought up from friends/family/co-worker circle to TESTIFY FOR the character of the defendant/claimant.
As in you make a claim vs me when we are totally alone by ourselves in the middle of the park and then you bring forth your friend who goes 'well ozone is a great guy/never lies/is an awesome dude, i testify to that'.
That is a COMPLETELY DIFFERENT ISSUE to you claiming i stole something/said something and you having ZERO material or circumstantial evidence and you raising your friend (who as also there) as proof. That is of ZERO validity, which ANY court will throw out, since your witness is YOUR friend and thus is fundamentally BIASSED in your favour when testifying AGAINST your opponent.
Your friend's testimony against your opponent is valid ONLY in the case of there being circumstantial evidence at play (which is not in this case).
If this wern't true, then two mates would go to a restaurant,eat food not pay the bill but claim to've paid it and then win vs the solitary waiter/waitress, since your 'friend is a witness who's backed you up'.
Sorry, but that is bollocks.
To sum it up, in lack of circumstantial/material evidence, your friend CANNOT testify against your opponent and still be considered a reliable witness.
no judge, not even a circuit-level judge, let alone higher courts, will entertain such a fundamentally biassed case. Is that clear to you now ?