Young black men committed most of the crimes in the District during 1975 and they were the most frequent victims of murders and other unnatural deaths in the city in 1976, according to reports by the D.C. bail agency and the D.C. medical examiner.

The reports, issued last week, portray black males, who comprise 36 per cent of the District's population, as both the victims and the prepetrators in most of the city's crimes. Back men constitute 78.5 oer cent of the District's total male population.

The bail agency report also disclosed that 57 per cent of the persons charged with crimes (85 per cent of whom were male and 90 per cent of whom were black) did not finish high school.

"The fact that so many black people die by homicide reflects the large number of black people living in the District," said Dr. James L. Luke, the District's chief medical examiner. "It is not a racial thing, it is a result of socio-economic factors. People who live in the inner city always have a high homicide rate."

Of 207 homicides in the District last year, 156 were committed against black males. Black females ranked second with 26; white males next with 17, and white females last with 8.

A quarter of the persons charged with crimes in the District during 1975, the period covered by the bail agency report, were charged with "violent" crimes, and a quarter admitted to using illegal drugs other than marijuana.

The report found that 57 per cent of the cases handled by the Superior Court in 1975 fell into five categories: drugs, larceny, assault, robbery and burglary offenses."

Whites, according to the report, were most often charged with drug and sex offenses. White women were responsible for a quarter of the charges against whites as compared to 14 per cent rate for black women.

The only category of unnatural deaths in which whites were the victims more often than blacks was suicide, according to the medical examiner.

According to medical examiner reports, white men were the most frequent victims of suicide with 36 cases reported last year. There were 30 cases of suicide involving black men; 25 with white women and 13 with black women.

Suicide is a middle-class problem," said Luke. "The majority of suicides are among whites. More whites are middel-class and that type of life has a stress that seems to induce suicide," he said.

Most suicides occurred in January and August, according to the medical examiner. Most of the people who took their own lives were between the ages of 20 and 29 years old, he said.

Medical examiner reports show that alcohol was involved in 40 per cent of the suicides where guns were used, 24 per cent of those committed with drugs, 17 per cent of those who leaped to their deaths and 25 per cent of those who died by hanging or drowning. The most frequently used method of suicide was firearms.

Guns were involved in 65.2 per cent of the 207 murders committed last year, the medical examiner said. Knives were responsible for 36 homicides; beatings, 20; strangulation, 8; and child abuse, 3.

Most of the homicide victims were between 20 and 29 years of age; the next largest age group was between 30 and 39 years old. Luke reported.

Thirty-six of the homicide victims were found to have seen using narcotics at the time of their deaths, according to the report. Alcohol was involved in 37 per cent of the homicides by guns, 76 per cent of those involving knives, 53 per cent of the beatings and 29 per cent of the strangulation deaths.

The largest number of homicides reported in any month last year, 29, occurred in February. An average of 17 homicides per month were reported in 1976.

In home and occupational accidents, black men again were most often the victims with 79 deaths last year, the report said. White men were next with 26 fatalities, then black women with 24, and white women with 12 deaths.

The report found that 57 per cent of the occupational and home accidents that resulted in deaths involved alcohol. Alcohol was also involved in 50 per cent of the drownings and 40 per cent of the asphyxiations.

Victims of home and on-the-job accidents were most often between the ages of 60 and 69.