How long is a Thai police clearance valid for?

thanks for the information

@Lasme *******

. much appreciated.

i think that will be the best thing to do. thanks Robert.

@Robert ******

the staff from the immigration gave me the list of the requirements and i show this to the school staff as everything is written in Thai, i show the list to the school staff. and they (the school staff) told me the requirements in English and i found out that the police clearance also is needed. when i ask them (the school staff) about the expiry of police clearance, they have no idea. as it is 5:30 pm already, they cannot ring the IO. anyway, i will request the school staff again to call the IO for the clarification.

for the visa extension. they gave me the list and the school staff told me that the Thai police clearance is also needed in the requirements. they also do not know about the expiry thing.

yes, it is included in the requirements. and i am just wondering if it is still valid after a year.