The defendant is on trial for fraudulently signing a check for $10,000. The defendant has denied that she signed the check. The prosecutor calls the landlord of the apartment building in which the defendant has resided for three months before her arrest. The landlord intends to testify that it is the defendant's signature on the check, and he bases his opinion of the authenticity of her signature on the ground that he saw her sign the lease to his apartment. Should the trial court find this testimony admissible

Adefendant charged with driving while intoxicated pleaded not guilty and insisted on a trial. right before the trial began, he fired his attorney and decided to defend himself. at one point during opening arguments, the defendant began to act like a cat, meowing and chasing an imaginary squirrel out of the courtroom. if no one else raises the issue of the defendant's competency to stand trial, what is the responsibility of the trial judge here? a) the trial judge has no responsibility, because the defendant decided to defend himself. b) the trial judge has no responsibility, because she cannot decide whether the defendant is competent to stand trial. c) the trial judge must raise the issue of competency, because the defendant is representinghimself.d) the trial judge must raise the issue of competency, because the constitution obligates her to do.