Seagoon, you quoted a statistic "The Justice Department report "Intimate Partner Violence 1993-1998" released in May of 2000, for instance, indicated that domestic violence occurred in 25-30% of homosexual households"
I guess you never read it (the DoJ report) or you get your stats second hand from an unreliable source. 
Here it is... Please find the passage you are quoting?
http://www.ojp.usdoj.gov/bjs/pub/ascii/vvr98.txtIntimate partner violence, 1993-98
Between 1993 and 1998, an average of 1.1 million
violent crimes were committed against persons by
their current or former spouses, boyfriends, or
girlfriends annually.  An average of 87% of this
violence, termed intimate partner violence, was
committed against women.
Between 1993 and 1998 intimate partner
victimization of women differed by race.  American
Indians were victimized by an intimate at rates
higher than those for all other females -- 23
American Indians per 1,000 persons age 12 or older
compared to 11 blacks, 8 whites, and 2 Asians.  
Black females were victimized at higher rates than
white and Asian females, and white females
experienced violence by an intimate at rates
higher than Asians.
                Average annual rate
                of inmate partner
                violence per 1,000
                persons age 12 or
                older, 1993-98
                   Female   Male
White               8.1      1.3
Black              11.2      2.0
American Indian    23.2      4.2*
Asian               1.9      0.3* 
*Based on 10 or fewer sample cases.
Trends in intimate partner violence 
The rate of intimate partner violence against
white females fell significantly between 1993 and
1998, from 10 victimizations to 8 victimizations
per 1,000 women.  
The apparent decline in the rate of intimate
partner violence against black females as measured
by comparing the 1993 and 1998 rates was not
significant.  Insufficient sample sizes for
American Indian and Asian females prevented
examination of trends.
              Female victims of intimate partner
              violence, by year, 1993-98 
              Female victims of intimate partner violence
                     White                Black
              Number        Rate    Number      Rate
 Total        4,560,740      8.1    961,380     11.2
1993            895,090      9.8    162,600     11.9
1994            813,670      8.8    174,470     12.5
1995            731,850      7.8    188,510     13.3
1996            689,170      7.3    177,530     12.3
1997            695,930      7.4    129,610      8.9
1998            735,040      7.7    128,660      8.7 
Note:  Multiple-offender victimizations are
classified by the most intimate relationship
between the victim and one of the offenders.
There were too few cases of Asian and
American Indian females to provide reliable
estimates for each year. 
Among white males there was no discernible trend
in the occurrence of intimate partner violence. 
The rate in 1998 was similar to the 1993 rate. 
There were too few sample cases for black,
American Indian, and Asian males for estimation of
changes in rates by year. 
Reporting of intimate partner violence 
Intimate partner violence is reported to police in
lower percentages than violent crime in general. 
The percentage of intimate partner violence
against females reported to police did not differ
by the race of the victim, 1993-98.  The only
exception was that 66% of violence by intimates
against black females was reported to police
compared to 51% of violence against white females. 
The percentage of violence against white, Asian
(52%), and American Indian (51%) females reported
between 1993 and 1998 was similar (not shown in
table).
White male victims of intimate partner
violence, by year, 1993-98 
             Number      Rate
 Total       713,466      1.3
1993         136,380      1.6
1994         146,610      1.7
1995         104,050      1.2
1996          96,940      1.1
1997          87,370      1.0
1998         142,120      1.6 
Note:  Multiple-offender victimizations are
classified by the most intimate relationship
between the victim and one of the offenders.
There were too few cases of black, Asian, an
American Indian males to provide reliable
estimates for each year. 
Reasons for not reporting the victimization were
similar across the victims' racial groups,
1993-98.  Violence by intimates against females
was not reported to police most commonly because
the victim stated it was a "private or personal
matter."  Other commonly stated reasons this
violence was not reported to the police was
because the victim "feared reprisal" and the
victim wished to "protect the offender."
For additional information see Intimate 
Partner Violence, BJS Special Report, May 
2000, NCJ 178247, and Violence by Intimates, 
BJS Factbook, March 1998, NCJ 167237, available  
on the BJS website.    
Reasons for not reporting intimate partner
violence to the police, females, 1993-98 
                   Female victims of intimate partner violence
                              White                Black
                        Average             Average
                        annual    Percent   annual    Percent
Private or
personal matter        124,210       34%    19,400       36%
Afraid of reprisal      70,760       19     10,390       19
Protect offender        45,630       12      6,830       13
Small/no loss           27,500        7      1,380*       3*
Police will not
bother                  21,570        6      2,850*       5*
Other reason
given                  147,850       40     26,290       49 
Note:  Percentages may not total to 100% because
respondents could suggest more than one reason. "Other
reason given" include responses such as "police
ineffectiveness or biased,"  "not clear a crime occurred,"
"inconvenient," and "reported to another official."  There
were too few cases of Asians and American Indians to
provide reliable individual year estimates.
*Based on 10 or fewer sample cases.
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