Marion County Law Enforcement Trust, Indianapolis, will issue an RFP by the end of the month for one to two domestic fixed-income managers. After completion of that search, the fund will issue an RFP for its first two domestic equity managers and then might search for its first international equity manager to diversify its $100 million defined benefit plan, said Bill Mauger, consultant to the trust. Proposals for the fixed-income mandate will be due 30 days after the RFP is issued. The trust now has only domestic fixed-income managers. The fund is replacing one current manager, which Mr. Mauger declined to name. The other new domestic fixed-income manager would be an addition. Portfolio sizes and funding sources are undetermined. A total of $30 million will be allocated to domestic equity, but portfolio sizes and styles are not known. Separately, the trust terminated four previous custodians and kept Key Trust as custodian. The terminations resulted from a decision to use one custodian instead of five, said Larry McHenry, board chairman. Terminated were National City, First Chicago NBD, Banc One and Union Federal Savings Bank. All rebid.