Here's the CAB advice
There are six methods which can be used to enforce a county court judgment. Not all methods are suitable for enforcement by someone acting in person without legal representation, which will, of course, involve additional costs. The costs of enforcement will only be recovered by the creditor if enforcement is successful, and, if the creditor is acting in person, s/he is entitled to recover only the court fee.
Each method of enforcement requires the creditor to know at the very least the address of the debtor. Each method of enforcement may take a considerable amount of time.
warrant of control, aimed at the debtor's goods
attachment of earnings, aimed at a debtor's earnings
third party debt orders, aimed usually at money that the debtor holds in a bank or building society
receiver by way of equitable execution, aimed at certain aspects of a debtor's income
charging order, aimed at a debtor's property
making the debtor bankrupt, aimed at any assets owned by the debtor
Each method of enforcing a judgment is aimed at a different aspect of the debtor's financial resources. It is therefore important for a creditor to know about the debtor's financial circumstances before deciding which method of enforcement to pursue.
In order to find out about a debtor's financial circumstances, the creditor can apply to the court for an order to obtain information. This means that the debtor has to appear before the court so that they can be asked questions, on oath, about their ability to pay the judgment debt. If they fail to attend court, or refuses to answer questions or take the oath, they can be sent to prison. Once questioning has taken place, a creditor may know which enforcement method is most likely to succeed or whether it is worth pursuing the case. Applying for an order to obtain information may persuade the debtor that the creditor is serious about pursuing the claim and may encourage them to pay, if they can.
The creditor should apply to the court where the judgment or order was first made.
However, where a judgment has been made in respect of a money claim issued at the County Court Money Claims Centre in Northampton County Court, the creditor should apply to the court where the debtor resides or carries on business.
To apply for an order to obtain information, the creditor must complete form N316. There is a fee