While the other side questions their witness, you can object to the questions (called raise an objection). You can object if the question or answer to the question isn't allowed by the rules that apply to court proceedings, called rules of evidence.
You can object if you think the other side's evidence, witness testimony, or question should not be allowed. The rules for what is allowed in court are in the evidence code. If a judge agrees with your objection, the evidence or testimony won't be part of the official court record and can't be used to decide your case.
How to object
Stand up as a sign of respect to the court.
It also makes it easier to see that you are objecting. If the judge does not want you to stand, the judge will say so, but to start out it is better to be too formal than not formal enough.
Say “Objection,” and then state your objection clearly and concisely.
You can interrupt a witness, if necessary when raising your objection. Make your objection before the opposing side goes on to the next question. The judge may offer the other side the chance to respond to the objection.
The judge will rule on the objection.
The judge will usually say "sustained" or "overruled" to respond to your objection. If the judge says sustain, they agreed with your objection. If they say overruled, they disagreed with your objection.