Farang in a relationship with a Thai - partner
The Thai goes to buy their son, in her own name a a motor bike over 110 CC, who's under eighteen.
The son is then involved in a motor bike accident.
Is or can the Farang be held legally responsible?

18 minutes ago, John Smith 777 said:

Farang in a relationship with a Thai - partner
The Thai goes to buy their son, in her own name a a motor bike over 110 CC, who's under eighteen.
The son is then involved in a motor bike accident.
Is or can the Farang be held legally responsible?

If you are married to a Thai woman and she becomes liable because she allowed her underage son to ride a motorcycle he is not legally allowed to ride, that can potentially affect both of you financially.

That is why I would not approve anything over 110cc while that is the legal limit for under 18.

53 minutes ago, John Smith 777 said:

Farang in a relationship with a Thai - partner
The Thai goes to buy their son, in her own name a a motor bike over 110 CC, who's under eighteen.
The son is then involved in a motor bike accident.
Is or can the Farang be held legally responsible?

no

Use of the word 'partner' may mean the poster is not legally married? If so, then no liability.

If legally married, then potentially at risk of a civil claim for damages/medical expenses. I'm not a lawyer, but my guess is that there's no other legal liability, as it was the son who committed an offence (as a minor) by riding whilst under age.

It's not an offence to buy a youngster a bike over 110cc, although I think it's irresponsible. But the legal offence is committed by the son by riding it.

But if any action is taken, I would advise the foreign partner to keep a low profile, or he may make himself a target of an inflated expenses claim.

A Thai friend who's married to a Thai had a similar issue where his son (who was not old enough to ride any size of motorbike) took his bike and caused an accident by hitting an elderly lady. He had to go to the police station with his son for a verbal telling off, and then the police joined the negotiations over the medical costs. The result was that he had to pay all the ladies medical costs plus an extra sum as compensation, but no other action taken.

NO ... "Section 429 of the Thai Civil and Commercial Code"

Not responsible, whether married to or not. It's not his kid, unless adopted.

6 hours ago, Kinnock said:

If legally married, then potentially at risk of a civil claim for damages/medical expenses. I'm not a lawyer, but my guess is that there's no other legal liability, as it was the son who committed an offence (as a minor) by riding whilst under age.

Don't forget if the GF has to pay = falang pays

Thank you all for your contributions.
Crazy circumstances here with my ADHD son, which meant I had to go to our local Police Station, and only when an officer duly informed him on the phone, did he finally accept what is the legal requirement.