Specimen handwriting is obtained using carefully created text which randomly includes words matching with those in the questioned document. These words appear suddenly in the text without context and giving no clue and little time to the person to change his handwriting so as to ensure that his natural handwriting may appear in the specimen / sample handwriting. An experienced police officer would usually take care in this regard. Anyway.
The best way to get the specimen handwriting of the person concerned is to get his old documents which would have been created in his natural handwriting. The police may try to search and seize such old documents written by that person and then send the same to the handwriting expert along with the questioned document.
Yet, another way could be to get some witness who could identify the handwriting of the person, and who is acquainted with he handwriting, in accordance with the provisions of Section 47 of the Evidence Act. As per Explanation to this section, “A person is said to be acquainted with the handwriting of another person when he has seen that person write, or when he has received documents purporting to be written by that person in answer to documents written by himself or under his authority and addressed to that person, or when, in the ordinary course of business, documents purporting to be written by that person have been habitually submitted to him.”
So, you can try to use these alternatives in your case, to the extent possible.
Dr. Ashok Dhamija is a New Delhi based Supreme Court Advocate and author of law books. Read more about him by clicking here. List of his Forum Replies. List of his other articles. List of his Quora Answers. List of his YouTube Videos.