Qualifying Service
12B If a Member leaves Service, returns and rejoins the Section and then leaves again before Minimum Pension Age, and the break did not exceed one month or was due to a trade dispute, the Member’s Service before and after the break shall be treated as continuous (but excluding the break) for the purpose of calculating whether the Member has at least 2 years' Qualifying Service after the break.
If a Member leaves Service with a preserved pension, returns and rejoins the Section and then leaves again before Minimum Pension Age, and is still entitled to benefit under the Section in respect of the period before the break, the Member shall be entitled to a preserved pension in respect of the period after the break whether or not he has 2 years' Qualifying Service.