There is no better way to assemble financial evidence in a contested divorce case than in obtaining your spouse's computer, both the individual as well as the business PC. There will be a treasure trove of information that will include records of stock transactions, the balances of stock and bank accounts, record of all transfers made to third parties, business records of all financial transactions and the like.
If the computer at home is left in a common area, you would be able to hire a forensic expert to copy the hard drive and preserve it as evidence for trial. With respect to business computers, your lawyer must make an application to the court to have the hard drives impounded by the sheriff until they have been cloned and made available for court inspection.
Striking first and early in a litigation is the key to ultimate success.