Ban on relatives standing for House, Senate – Bangkok Post, January 13, 2016
…Under the new regulation, those wanting to contest MP and Senate elections must not have parents and spouses who are active MPs, senators, members of local administrative bodies, or local administrators. They must not hold any political position including being a director at an independent organisation.
Also, people from the same family would be barred from running in an election in the same district, Mr Chartchai said…
[This is another anti-Thaksin regulation. During Thaksin’s time as PM, there seemed to be a strong desire to show that Thaksin could thwart the intent of a neutral senate by filling it with the spouses of his party’s MPs.]