This is the 191st most frequent Lithuanian word.
tyrimų
"Research" or "investigations" (genitive plural form).
In this sentence, 'tyrimų' ('of studies') is a partitive genitive plural form indicating possession, representing the scope or results of multiple research studies.
Visuomenės sveikatos specialistai pateikė naujų tyrimų rezultatus.
The public health specialists presented the results of new studies.
Here, 'tyrimų' ('of researches') is used in genitive plural to describe the scope of scientific investigations the students are to conduct.
Studentams buvo paskirtas uždavinys atlikti keletą mokslinių tyrimų.
The students were assigned the task of conducting several scientific researches.
In this case, 'tyrimų' ('of investigations') modifies 'ekspertai', describing the area of expertise, showing possession of forensic research knowledge.