Question

how long is the term limit for a member of this powerful court? (look after good behaviour)

Explanation:

The question relates to the term limit of a court member (likely a Supreme Court justice in contexts like the US), where they serve for life (during good behavior). This falls under Law (a subfield of Social Science) as it's about legal institutional rules.

Answer:

For a member (e.g., Supreme Court justice in the US context) of such a powerful court, the term limit is "for life (during good behaviour)" (they hold office during good behavior, essentially a lifetime appointment unless they resign, are impeached, etc.).