Art. 1036 Jurisdiction; mode of procedure

Here's what this rule means in plain terms.

When someone files an extra claim inside an existing lawsuit (called an incidental demand), the court can only hear that extra claim if it would have had the legal power to hear it as its own separate case. In other words, filing a claim as part of another lawsuit doesn't give the court any special authority it wouldn't otherwise have. The only exceptions to this are found in the state constitution itself.

The second part of the rule says the extra claim has to follow the same court procedures as the main lawsuit it's attached to. This keeps things simple and consistent. Instead of using different rules or steps for the add-on claim, everyone follows the same process already being used in the original case, unless another law specifically says otherwise.