delivered the opinion of the Court.
This case comes here on certiorari to resolve a question arising under the Longshoremen’s and Harbor Workers’ Compensation Act of March 4, 1927, 44 Stat. 1424, made applicable to the District of Columbia by the Act of April 17, 1928, 45 Stat. 600.
While by § 33 (a) of the Compensation Act the employee may elect to pursue his remedy against a third person, election does not deprive him of his right to compensation. See
American Lumbermen’s Mutual Casualty Co.
v.
Lowe,
70 F. (2d) 616. By § 33 (f) the employer or the insurance carrier who, by §§ 32 (a), 35 and 36 is substituted for the employer, remains liable for any amount by which the recovery against the third person falls short of the prescribed compensation, Section 33 (a) only pro
Upon election of the employee to take compensation the employer is entitled to be subrogated to the rights of the employee against the third person. The insurer, who, as an indemnitor of the employer, and by the Act, stands in the place of the employer, is similarly entitled to subrogation. As with other indemnitors, his obligation may be discharged by release or other relinquishment of the principal liability which deprives him of his right of subrogation.
Aetna Life Insurance Co.
v.
Moses,
Whether, in any case, an indemnitor is discharged by the mere failure of his obligee to sue the principal debtor until suit is barred by the statute of limitations, remains an open question in this Court. See
Nelson
v.
First Nat. Bank,
It is generally true that the obligation of a voluntary surety is so far regarded as
strictissimi juris
as to be released upon a showing, without more, that the principal obligation has been modified or surrendered without the consent of the surety.
Sprigg
v.
Bank of Mt. Pleasant,
This follows from the fact that the surety’s contract, not being one of guaranty, does not entitle him to have the creditor first assert his claim against the principal debtor.
Moreover, respondent is a compensated surety, whose premiums the employer is required to pay by § 32. The rule that any modification of the principal obligation releases the surety is also abated in the case of a compensated surety or indemnitor, who is discharged only so far as his right is shown to be in fact prejudiced by action of the indemnitee. One who engages in the business of insurance for compensation may properly be held more rigidly to his obligation to indemnify the insured than one whose suretyship is an undertaking uncompensated and casual.
Atlantic Trust & Deposit Co.
v.
Laurinburg,
Application of these principles to an insurance contract under a compensation act such as the present does not require that an employee who has elected to proceed against a third person do more than prosecute his claim in a manner and to an extent which will avoid prejudice to the insurer’s right of subrogation. The facts disclosed show that respondent has not been prejudiced. The judgment upon the first trial was set aside by the Court of Appeals because uncontradicted evidence established petitioner’s contributory negligence so clearly that the trial judge should have directed a verdict for the defendant. The appellate court was nevertheless required by the rule of
Slocum
v.
New York Life Insurance Co.,
Reversed.
